Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Sunday, February 22, 2009

WPPI Teaser

Not ready to launch the full blogpost yet, but for those who have been interested in getting a taste of the week, here's a dozen or so images from the tradeshow floor! Full post (or several) up later this week. (photos of relatively empty booths were taken before the show opened Monday morning...I slipped in past the guards to get a pre-show preview!)


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I had NO idea that Joe McNally was in this shot until I got home and started looking through my images! I didn't even realize he was at the show until two days later when I saw him hanging out at the Nikon booth again!

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More to come soon, check back later this week!

Saturday, February 14, 2009

iPhlip: Flip Mino HD

Man these past few weeks have been busy, this time of year is always crazy and I'm always running around trying to get everything I need done in the inadequate amount of time I have to do it in...but anyways, I figured I'd fill you all in on a new toy I picked up called the Flip Mino HD. I'm going to come right out and say it, if you don't already own a video camera and you have kids or are recording important family stuff, don't buy a Flip, get a real camcorder first! I bought the Flip HD because I've was given a Flip Mino (non-HD) to test out for about a week or so to use earlier this year and found it pretty fun to have around, since Apple still doesn't allow me to record video with my iPhone. When the HD version came out I decided to give it a go, but low and behold a couple other similar products came out around the same time so I wanted to give them all a go to see which I liked better. I decided to really test out the Kodak Zi6 and the Flip Mino HD when it came down to it as most of the other similar products just didn't seem to be built all that well. I originally intended to go out and shoot video specifically for this review using both my FX1 and the Flip for a side by side comparison, but I've been just been too busy for that, so what I've decided to do instead is throw up a compilation of various video clips in varied lighting conditions to run the gamet of the situations you might find yourself recording video in. I originally was procrastinating on getting this up online because I originally thought I'd have to edit it all in Final Cut (a awesome app, but a pain to get quick clips edited), but I just got iLife 09, and the new iMovie was able to handle the footage just fine. I threw some clips together, didn't spend a whole lot of time on this, but wanted you to get a broad range of lighting examples... so you'll see that the Flip wouldn't be ideal for spelunking! I didn't use iMovie's stabilization feature, so you'll see a little shake due to the small size and light weight of the Flip. I'm fairly steady, but this video could still make you sea-sick, you've been warned! (just kidding)


(the end of the video alludes to an upcoming blog post...check back very soon)

The Kodak Zi6 has some nice features, such as removable/expandable memory (the Flip has a permanent 4GB built-in...no upgrading later) and the double edged sword of AA batteries...I say this because if you're out camping or just out with friends and your battery kicks out, you need to go find a computer to charge up the Flip, whereas you can just toss in a couple AA's from your local Walmart or convenience store. This however makes the Zi6 a bit larger and heavier, and ultimately I wanted something that was smaller (the Flip is about 1/2" smaller in every dimension) that I would be more likely to take everywhere I go. There are two other aspects of the Zi6 that made me want to keep it too, better contrast in the video as well as a larger LCD screen. The Flip has a 1.5" display, definitely not good for showing to more than 1-2 people at a time, the 2.4" display on the Kodak isn't huge but is definitely nicer for group viewing. The other primary trade-off between the two is the lenses. The Kodak has a slightly slower lens (f/2.8 vs f/2.4) so the Flip performs better in low light (Flip claims down to 1.4 lux) although the Kodak can focus much more closely, all the way down to two inches in macro mode (~28 inches in normal viewing), where the Flip has a fixed focus of about 5 feet (1.5 meters).

As you can probably tell from the above videos, this is not something you would want to record an episode of Lost on, nor would I recommend it for important family events like birthday parties, weddings, family reunions, kid's sports, ect. I would, however, recommend it (or the Zi6) for use as a backup device to always have with you even when you're not expecting to need to record something, it quick to turn on, dead-easy to use and small enough to carry everywhere. It also makes a fantastic gift for kids and teens who want to upload video onto Youtube and share with their friends. The Flip I think will become like the gateway drug for young kids who want to get into video but don't have parents that want to risk buying a $600 camcorder that gets used once or twice and spends the next 4 years collecting dust in the closet. Both products come with really simple software that allows you to do some basic editing (although I find Flip's software far more stable and faster) and do a direct upload to Youtube or Myspace. You'll notice that I've uploaded my videos to Vimeo for this test, and that is because Vimeo supports better image quality so you can get a better feel of the actual results out of these cameras.

What this also means, is now that I don't have to take out and setup all my HD Sony production gear to record things like this (wireless mics, tripods, firewire cables, ect.), I might actually start integrating some video clips into this blog, just maybe though...LOL! BTW, check out Armin's review... he was quicker to write a review than I was :(

Friday, January 2, 2009

Camera of the Year

Hope everyone had a great holiday and a happy New Year! I've been absent from updating my presence here on the internet for a LONG time. The past month or so has been total madness, I literally worked every day from the 11th of December until the 30th with the only exception being Christmas, and sometimes Christmas with the family sometimes feels like work, LOL. So I'm realizing the 3 or so posts I started working on about stuff over the past month will probably not get done so I'm starting fresh with this one. I just happened upon this hot camera today and just had to have it, so I took it(no I didn't steal it)... it had been ABANDONED! Thrown away! This will be the camera I use at all of my weddings and events in 2009 (the lens is a little wide for portraits, so I'm just going to have to suck it up and use the D3 for those I guess...) Without further ado, I present the Apple QuickTake 200...



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The what? That's right you read it right, the camera no one had ever heard of is now in my poessesion. Apple apparently made three digital camera models over a decade ago in 1994-1997 (the product line was killed when Steve Jobs returned). The one now in my possession is the third model the QuickTake 200 which sports a rockin' .3MP (thats right point-three mega pixels...you know, for those 1/2" by 1/4" prints) and a beautiful 1.5" LCD display. Please don't be jealous, I know you other photogs just bought your 5D Mark II's and D3X's and are now kicking yourselves. LOL! (please note: I'm not seriously going to use this thing...it only takes upto 32 photos with the largest memory card it will support, this will be a new paperweight for me)

Anyway, I didn't get around to doing a proper product shot of these, just a quick shot with my TV as a light source and a lens cloth as a backdrop..maybe if I have some time off this week I'll get around to doing a better shot for your viewing pleasure. In addition I hope to finally go out and field test my customized Flip Mino HD this week and share comparison clips between the Flip and a "real" video camera.

Saturday, November 15, 2008

Game changer...

I usually don't like to post about things I haven't actually spent time using or was not present for, but this is too big and most people won't have heard about it (and most won't for a while until this company starts to pick up speed). About a year or so ago a company called RED decided to build a video camera called RED ONE, but this wasn't a regular consumer video camera, it was a fullblown professional digital cinema system that is completely modular. Not only that, this system is able to produce video at 4k resolution at 30fps (4k is around 2X 1080P high definition). The tag line of this company is "making obsolescence obsolete". This is something they have taken to a whole new level with their two new product lines that have been announced only a few days ago. They unveiled the EPIC and SCARLET systems which they refer to as DSMC's which stands for Digital Stills and Motion Camera...yeah that's right, I said Digital Stills (hence why I'm blogging about it). RED has gone and made a modular DSLR. Stop the presses, roll out the red carpet (no pun intended) and alert the media! Now for the really cool stuff!



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You buy a "brain" of whichever system you want to go with...then you get to decide what components to buy to do what you want to do! If you want a shoulder mount video camera that shoots at 3K at 120fps, you can do that, if you want a full blown cinema studio over-the-top monster camera...at 28k resolution at 24fps...yeah you can do that too! On the still photo side you get to choose your resolution from 4.6MP (megapixels) all to way to a mind-bottling (like it's so crazy your mind gets trapped in a bottle) 261MP!!!!!!! And the best part of all of this? You won't have to buy new lenses when you decide to move up into the big leagues, that's right you can strap on your best Nikon, Canon, PL and Mayima lenses on and start shooting both photos AND video!

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Oh and one more thing...coming soon: 3D!!! Oh yeah...that's why I said GAME CHANGER!

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Check out RED.com for more info. As much as I love my Nikons...this is a very good thing for the industry and I hope they sell LOTS and LOTS of cameras!

Friday, October 24, 2008

Feeling DROOBY...

I just received my Drobo 2.0 on Thursday, and let me tell you...I'm excited! I used to use a grand total of 15 external hard-drives (16 if you include both drives in my RAID 1 system...and this doesn't include internal drives I just have laying around) to store all my media on. Why the ridiculous number? Because I was afraid of data loss! So for every 1TB (1TB=1024GB or 1000GB depending on what system you go by) of storage I needed, I had 2TB to make sure if a drive died I'd have it backed up. Since quite a few of those drives were 500GB Western Digital My Books, this means I need 4(FOUR!!!) drives to store 1TB of needed space (2 for storage, 2 for backup). Some of my drives were larger, but I currently have about 8TB of storage total that I am using. So there's two questions that I'm going to answer that you probably would ask me if you were standing in front of me right now...


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One of several shelves that hold my storage and battery backups...just in case...

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8 internal drives, 2 external and a Dundee award (from "The Office" for the 2 people that don't watch the show)

1st: "You have how many drives? Why?"
The reason why I have so much storage is for keeping all the photos of all of your beautiful faces and the beautiful places I've been to backed up in triplicate, as well as organizing all of my digital media ranging from a huge iTunes music library to old family photos, to about ton of movies and TV episodes. Yes, all of my movies and TV shows on my drives are LEGALLY bought and I own all of them on DVD (some I bought on iTunes) and rip them to my computers so I can watch them over my network on my computers or sync with my iPhone, without having to track down the disc and waiting for it to load in a DVD player. Even with 8TB of storage, I barely have 800GB free across all of my drives. I am a pack-rat of digital media...I have an addiction...


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Glossy...SUPERglossy!

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Doesn't get much less complicated than this!

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FW800 + USB2.0 = Awesome!

2nd: "What on Earth is a Drobo?"
A Drobo is an amazing piece of technology. It is very much like RAID 5 array, but it is self-healing and you can mix and match drives and upgrade your storage at any time. So what's RAID 5? RAID stands for redundant array of independent drives(or disks), which is used in computers and servers to either provide very fast data transfers OR very solid backups of you data. RAID 5 is designed to backup data across 3 or more drives in such a way that allows any one of the drives to completely fail without losing any data (meaning you can recover you data and then replace the drive. This allows for massive amounts of storage with very minimal risk of loss of important data. The downside of RAID 5 is that if one of the drives fail, you have to pull your data off, wipe the drives clean, buy a new drive and rebuild the RAID from scratch...BIG pain! Big waste of time! Not to mention RAID 5 systems are pretty pricey.

What makes the Drobo so unique is that if a drive fails, you can simply pop it out and throw in a different drive (ANY capacity, doesn't have to be the same) and the Drobo will automatically shift the data around to make sure that you data is again backed up across all drives in it and your data is protected. I've had a number of hard drive enclosures and hard drive power supplies die on me, and 1-2 drives fail on me too. Now if TWO drives fail simultaneously (which would be almost impossible...note that I said almost...like finding an unused lottery ticket on the ground that's the billion dollar winner...)that's when you'll lose data. That's why I still plan to use some of my existing externals just as a tertiary backup of really important stuff like my family and my client's photos.

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Massive nest of mess...

Another big reason I got one is that I'm sick of having to dig through a GIGIANTIC rats nest of power cables, USB and Firewire cables just to figure out which of them kicked the bucket. With this guy, I have 1 power cable and 1 FireWire cable to worry about...down from 4 of each with my current setup! Drobo can store upto 4 SATA drives and depending on what drives you throw in there can give you up to 4.1TB (usable storage, not including space reserved for backups [as of this post 1.5TB drives were the largest available]) but with hard drive sizes ever increasing, you will eventually be able to throw four 4TB drives in there! I'm starting off with just the one Drobo 2.0 (with Firewire 800...yes Steve! IEEE1394 is still very much needed these days!) and will be dumping a couple of my drives in it to save on space, power outlets, cables and overall headache.

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Snapshot of Drobostation software seeing my drives, but also...not seeing my drives?

Also I feel it is fair to say that I definitely had some problems with my unit initially, but I want to blame it on the drives I was using, not the Drobo itself. I found 4 250GB SATA drives I was using as a pair of RAID 0 systems I had in a desktop I built 3-4 years ago, that I was no longer using (back when I was a PC junkie, and 250GB's was HUGE!). I had some wierd formatting issues that I'm working out with Drobo Support, but I bought a couple of new SATA drives to throw into my Drobo to start from sratch and all seems to be functioning perfect...for now. I won't wipe my data off the old drives for a couple weeks just to be on the safe side for now though. If I'm thrilled with Drobo (and I expect to be) I'll order another one to hold another set of drives to further simplify my life! As Leo Laporte would say, "I'm feeling Droooooooby!"

My initial impressions (outside of the formatting/won't mount properly issue...which again I think was a problem with my drives) are extremely positive. I open up boxes of a TON of new electronic devices, and except for Apple products, the experience is very bland. Drobo was packed in a really nice foam enclosure and a "muslin" type wrap and even as unimportant as this may seem, the little extra touches go a loooonnnggg way to making you feel like you just invested in a high-quality product...not a piece of junk. Also very rarely are such high quality power cables and power supplies included. Usually hard drives, PCs, enclosures, ect. all come with cheapo $1 cables that feel like dental floss. I've never seen such a thick FW800 cable in my life! Again, this may seem trivial but it helps ease that buyers remorse syndrome when you've spent $500 on a box to hold hard drives. Build quality of the Drobo is top notch and feels like it could withstand a cannonball. My only complaint is the front cover is extremely glossy and seems to be a bit of a dust magnet, and glossy plastic is kinda hard to get dust off of (it tends to just slide around avoiding your attempts to remove it). I doubt this will become a major concern; after all, it will just be sitting on a shelf next to my computers...it isn't something that needs to be spotless at all times. Check back in a few weeks to this post for a followup on performance and reliability!


Also...I wanted to get this post up quick before I forgot I ever starting typing it, so I haven't gotten around to taking high-quality review photos for this like I did for the SB900/Sony a350 reviews...all these images are just quick snapshots with my iPhone, hopefully if I get time I'll swap out these images for better ones soon.

UPDATE: Well I've had my Drobo up and running for about 2.5 weeks or so, and the thing has been running like a champ. It hasn't dismounted on me even once, keeps up with streaming video over an Apple TV, while watching something else Macbook Pro over the network WHILE watching a yet another movie on the Mac Mini it is connected to. This empirical test was also done during a file transfer to the Drobo in excess of 25GB!!! The only strange thing I've encountered with it is a truly bizzare Scifi type noise when the drives start spinnning up after the computer put itself to sleep. That could be related to something with powerlines with my audio system or battery backup unit, but it's truly odd. The only way I could describe the noise is as what you would expect a ray-gun from a 1960's Scifi movie would sound like if it was charging up to fire, like a bwoooooppp!!! Imagine four separate drives spinning up in unison while a low RPM fan kicks in as well...there you go! I've swapped out drives several times since the inital setup and each time it was able to shift my data around without any problems, I even tried a disk swap while transferring files to the Drobo, although I would recommend avoiding that whenever possible.

To put it simply, I HIGHLY RECOMMEND this product and definitely plan on getting at least 1 more in the next 6 months or so. Any photographer, videographer, or really anyone with something to lose (data I mean) should get one of these, even if you only put a couple 250GB drives in to hold you personal photos and videos from vacations and family events...NOTHING in the world is more important than your family and the images you have to remember them by, I learned this first hand about a month ago when my grandfather died and my family had virtually no good photos of him that weren't heavily faded or washed out from the passing of time. My only suggestion is that oyu make sure your drives WORK before you put them in, that was the cause of my frustration the first few days. Also keep in mind that it could easily take several hours for the Drobo to optimize itself again if you replace a small drive with a very large drive. When I replaced my 250GB with a 1TB drive it took about 10 hours since I had another two 500GB drive and a 1TB in it already.

Friday, October 10, 2008

New view on the World (Wide Web)

Just got finished setting up my new 24" LCD. I REALLY wanted to get an S-IPS panel, but I really didn't want to pay 300% more for one. I calibrate all my monitors to prints that I've made on my Epson R1800 and prints I've received from the labs I order from, so if there's a little bit of visual color shift from different angles it doesn't matter to me. I just need it to be accurate from where I'm sitting, so I settled for a mid-range display. This replaces a 4 year old LG L1720P (TN type panel) that I had purchased two of when they first came out for $480 each...it's ridiculous to me how cheap good electronic gear is now.

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Here's what my "office" looks like now...a bit like the matrix. (from left to right, 24" Samsung LCD,15.4" Macbook Pro, 17" LG LCD, 40" Samsung LCD) I'm so addicted...I'm even considering picking up a Mac Pro sometime next year after the Nehalm processor refresh and picking uo another 40" LCD to use as my primary system...I need to go to counseling or something!

Saturday, September 27, 2008

...and then there were three...

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Bet I had you guessing for a second what the shrouded camera above was...I've had the opportunity to test out a Sony alpha 350 for the past week or so, and I've got to say, that this iteration of DSLR from Sony is the first that seems like they're really trying. I've used the alpha 100 and alpha 700 extensively, but they both felt sorta half-finished. They changed a lot with this new version, and if it feels like Sony had dipped their toe into deep end with the a350, then they decided to do a canon-ball dive with the new alpha 900 which will be in stores in a few weeks.

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First thing you'd notice about the a350 thats new and improved over the a100 is the big LCD screen on the back that bulges out a bit. It seems a little odd at first, almost as if they couldn't fit the whole LCD inside the camera, but if you look closer there is a little grip on the side of the screen that allows you to pull it out and tilt it up about 140° or down about 45° (these are my estimates, I couldn't find exactly what degree of tilt Sony claims). The screen displays your basic information such as shutter speed, aperture, ISO, flash, white balance, focus, quality, and battery settings fairly simply, however I want to focus on a few things that make this model stand out a bit from the competition.

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So why have a flip-out LCD? Well this DSLR was one of the very first to have a functional live-view mode, which allows the photographer to frame up his or her shot by using the LCD instead of the optical viewfinder. While I'm still very much of the mindset that a photo should be taken through the viewfinder for a number of reasons, this feature can be VERY helpful to first time DSLR owners who are very used to using an LCD on their compact cameras in this way. It also allows the photographer to get more interesting perspectives on many different subjects allowing the photographer to get an image they would previously have had to lay in the dirt or dangle off dangerous ledges to try and get the shot they wanted.

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What makes the live-view on the Sony so special is that it actually autofocuses quickly, unlike the AF system on the Canons and even my flagship Nikon D3 can do when using live-view. Sony accomplishes this by directing a portion of the light that would normally be hitting your image sensor to a separate AF sensor that focuses the same way you camera does when it's not in live-view, phase detection (explanation of the differences will be saved for another time). That said, the a350 LCD is especially susceptible to glare and is not overly bright, therefore not entirely useful in the environments you'd think it would be the most beneficial in. I found it to be a little off in what appeared to be a proper exposure and even after adjusting the brightness and tone settings on the camera's screen, I was still not impressed with what it was able to produce out in broad daylight. The photos I took however came out fine, however unlike my Nikon gear or my older Canon gear, I couldn't trust the image the screen was showing me at all, I had to rely on my experience and the histograms I could view.

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Ergonomics are far improved over the alpha 100, however are still not to my personal liking. The layout of the buttons and controls is a blend of the Olympus E-series DSLRs and the last generation of the Canon Rebels (XT/XTi). Slightly wider grip, which would be great for most guys looking for an SLR, however not very tailored for the average soccer mom looking to take great images of her kids. Of all the control placements, most felt positioned appropriately except for ISO, which was placed on the top of the camera in a place that was very awkward to adjust on the fly with my thumb. Had they moved that one control to the rear panel, I feel that the entire feel of the camera would have been changed for the better. Also I found my pinky curled up on the bottom of the camera frequently as it was shorter than I am used to. On the top left of the camera, you have access to what Sony calls "instant-expert" modes, which I call "don't know how to use my camera, so I'll try this icon" modes (I'm kidding, sometimes those can be useful for beginners). My experience with using these were just like any other DSLR brand, they work...sorta. These modes pick predetermined settings that would get you a great picture in ideal situations, but as any photographer will tell you, there are RARELY any ideal situations, never enough lighting, lighting is bad, lighting is changing too much, ect. I tried out several of those modes, got frustrated with under and over exposures and went back to using full  manual, and everything got better.

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The two lenses I had access to during my tests were the kit lens which was an 18-70mm f/3.5-5.6 and an 18-200 f/3.5-6.3, which were designed for consumer use, being rather slow for indoor use. Both were definitely acceptably sharp for the pricing, my copy of the 18-200 becoming a little mushy in fine details at around 140mm-180mm. Another interesting feature of the Sony while I'm at it, is that EVERY lens you put on the camera is stabilized, which is to say that every picture you take is stabilized. The reason for this, is that Sony has implemented sensor-shift stabilization, which works great, however you won't see the effect of the stabilization until you take the shot which is a little unnerving to me as when the viewfinder blacks out I expect to see exactly what I expect as the result of my picture. If the sensor is still moving around to stabilize itself after you click the shutter, it is possible that what you intended to be in your frame may longer be there. The benefit is obvious however as you do not need to spend more money on a lens that has image stabilization, although we all know higher end lenses have more than just stabilization going for them.

As a side-note, I also was able to test out one of their entry level flashes the F42-AM, which was surprisingly powerful for the price and I was able to fire off a shot outside at 1/2000" and still have the flash show up on my image which was rather impressive for an entry-level system without needing to change things like sync-speed settings.

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Last week I was in San Antonio for about 36 hours (long story) and had a chance to go outside for a bit and give the camera a real world spin. Below are a couple of the images I took at around 2PM-4PM on a nice sunny Texas afternoon to show off the dynamic range and image quality out of this model.

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One new feature that works only 50% as advertised (but that 50% works great) is DRO+, or Dynamic Range Optimizer. What this mode is designed to do is automatically adjust your over and under exposed parts of your image to compress the dynamic range to bring out details in the shadows and control blown out highlights. In my experience with this, the a350 was able to hold its own against highlights, but it didn't seem to bring out any additional detail in shadows at all. This mode however if great for using in all sorts of outdoor environments, especially for getting better detail in bright white clouds (and there were some great ones last week in TX).

An example of some mushy details at around 180mm, not the sharpest feathers in the bunch, but still good for an entry-level lens
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Apparently there was some sort of "chemical scare" at the courthouse...HAZMAT suits are never a good sign...
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Had to throw this image in the mix. I used a timer and the F42-AM Sony flash bounced off the ceiling which remotely fired two SB-800's set in SU-4 mode. I was getting a lot of looks at the conference I was at because I was the only nut who would haul around 3 flashes for 1 camera (even more crazy since two of the flashes were from a different brand).

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In conclusion:
Sony has built this camera from the ground up to appeal to NEW DSLR users. If you're currently a Nikon or Canon user, there is NO incentive for you to switch over or consider getting a Sony as a second system [you folks know who you are :) ]. However for a first time buyer, there are some great benefits to this system and Sony is showing no signs of slowing down the innovations they put out there. I doubt that Nikon or Canon would have EVER put live-view into their cameras if it wasn't for Sony or Olympus to do it first. This competition is good for us as photographers...it's what is giving us HD video in cameras like the D90 and 5D MrkII. If a friend or family member is looking into buying a camera and doesn't need/want a bunch of expensive and heavy f/2.8 glass, I wouldn't hesitate telling them to play around with a Sony and see how they like it. I'm not saying it's going to be the best for them, but it certainly is a viable alternative now and looks like Sony will just be pushing more and more to take more marketshare from Nikon and Canon.

Wednesday, September 24, 2008

Nikon SB-900 Review

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Well I've been playing around with Nikon's latest Speedlite for the past few days, and it's definately got some great features and updates over it's predecessor the SB-800. I have two SB-800's that I've used fairly extensively on and off the camera, and originally thought there would be no reason for me to upgrade to the new flashes as I usually set my flashes manually and don't use the CLS system (more on that a little further down) as I prefer the capabilities of my Pocketwizards (more on that later too).


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Some of the obvious changes with the new model is the size and the removal of the side carriage for a 5th AA battery as well as a new interface for controlling the flash on the back. The SB-800 had the 5th battery carriage as a way to keep the flash refreshing faster (meaning allowing you to use the flash again more quickly) and it really was necessary for anyone who needed to take more than 1 picture every 1-2 seconds (which is just about everyone, except maybe...no everyone needs that). The new SB-900 has completely new electronics inside which allowed Nikon to eliminate the 5th battery and still increase refresh time between flashes. This is great for me as I hated having to have so many extra batterys with me all the time and have three leftovers from a pack of eight instead of being able to use a pack of eight to power two whole flashes. The Nikon flashes also have always been a step above the Canon flash system in being able to quickly change settings and setting up a wireless link between the flashes for off-camera lighting. This new model puts a quantum leap between the two, usually very comparable brands. (Also: the SB-900 is still compatible with external battery packs, although I don't use them, and therefore can't comment if there have been any significant changes to the way this works...looks like the same port though)

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The wireless system from Nikon is called CLS for: Creative Lighting System. The two primary reasons why off-camera lighting is important: 1) On camera flashes can cause red-eye in photos and 2) On-camera lighting usually looks very bland, and creates very flat shadows with no dimension to your images. The way CLS works is by having a "Master Unit", which can be a SB-800 or SB-900 or even a DSLR's built-in flash in the D80,D200, D300, or D700 and using several "slave units" which can be a SB-600,SB-800, or SB-900. The master unit sends out a pulse of light that tells the slave units how powerful they need to flash and when, which can be set manually from the master unit or can be set to TTL (through-the-lens) which means that the camera will automatically adjust each flash to what the camera thinks will give it a good exposure.

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CLS is a great system for using off-camera flash, however has some severe limitations, such as requiring line of sight and having a somewhat limited range due to it being a infared system. Because of this limitation, I've always used a device called a Pocketwizard to remotely fire my flashes as this device is a RF (radio-frequency) triggering system than doesn't have the limitations of CLS. The downside of Pocketwizards however is that each flash must be set manually on the flash itself, so if after looking at my photo I decided I want a particular flash to be a bit more powerful and light up a little more of what I have it pointing at, I need to walk over to that flash and adjust it. I don't have to tell you that this could be a non-optional thing when shooting an important event that is underway, you can't just say "Hold on everybody! I need to adjust my flash!" While this would be fine in a studio type environment or a commercial shoot, a wedding or corporate event would not be the time to experiment and be running back and forth. The product that is out there as the 'best of both worlds' would be a product called a RadioPopper, although I have not actually tested one of those out personally.

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I've always found the SB-800 interface to be great, really fast to change settings, and very intuitive (except when making the flash a master or slave...you have to hold down a button for a couple seconds...BUT WAIT! There's an instruction chart built right into the bounce card! AWESOME!). The crazy thing is that Nikon, when designing the SB-900 completely changed the entire layout and design of their old model and came up with a whole new way of accessing and changing those often needed settings. The cool part is that what they changed made a great system even better. Instead of having to hold down the center button for 2-3 seconds, all you have to do now if flip the power switch to the "master" or "slave" setting, and presto...you're on your way. Also they now have a much quicker "Canon-esque (see the SX-100/SX110 series)" click-wheel for going between power settings and adjustments on the fly as well as having individual buttons for each different component of the changes you need to make. One button dedicated for power adjustments, another button to adjust modes, another button to adjust wht your intended aperture will be and another button for the zoom on your flash.

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For those of you who haven't used a Speedlite extensively, flashes can zoom just (well sorta) like a lens can. The new SB-900 has a range from 24mm-200mm, which means you can have a very wide spread on your beam to illuminate a whole group of people or create a great fill-light, or you can have a very narrow beam that's great for isolating a small portion of your image with a little splash of light to make that person or object jump right out of the picture. This increased range, when used with lighting modifiers such as snoots, umbrellas, softboxes and gridspots will allow you you keep light as loose and soft or as tight and hard as you want, which just opens up creative control all the more.

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Also improved on the SB-900 is the filter holder. Anyone who has used a SB-800, knows how big of a pain it is to fit the included gels into the little hole to hold the gel in place when running around with the flash. The new gel holder actually is a separate piece which goes between the plastic over the flash tube and the diffusion dome, which allows it to be held in place much more securely and not hamper ease of use. I usually set most of my gear manually, so I have no hands-on experience with this, but according to what I've read, the code printed on the gel itself will tell your camera what to change your white balance to, however the second you want to get creative with color, I could imagine that become a big pain to go through and change everytime you change a gel.

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Overall the SB-900 is a massive evolution of the SB-800 that is improved in every way except portability, as the SB-900 is quite a bit larger than its predecessor. The only problem I have had with it at all in the few weeks I've been using it, is during a wedding, it stopped firing as it became overheated because we were firing about 15 full-power shots in a row with virtually no wait between shots.

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This caused a rapid build up of heat from the flash tube and the flash actually started beeping at me and wouldn't fire for a few minutes until it cooled down a bit. I discovered later I can turn off this built-in safety although it will still beep at you, it will allow you to continue burning the bulb out until you destroy your flash and need to drop another $500 for a new one...but I'd recommend listening when it starts complaining to you about the heat...

Get out there and start flashing! Photography wise I mean...