3.01.2013

Yet another celebration...

Just sending the hard working staff and the visionary executive leadership team (ELT), as well as the august and mighty board of directors of the VISUAL SCIENCE LAB, an assortment of flowers to celebrate the 12,000,000th pageview of the Visual Science Lab Blog.

Thank you for joining us!





























Sony A99 Production Camera. A working tool.

Photo of Sony a77 and Rode microphone, not particularly relevant to the article below. Just kinda there to let you know I'm also thinking of my camera as a video production tool. 
Don't be literal.

I just wanted to praise my camera today. Sometimes we forget that, in addition to being fun neck bling and a rich source of web discussion, they are also working tools for professional photographers. In that regard the usability and ultimate flexibility of the camera is most of the times much more important than the ability to squeeze out the last little percentage of objective image quality.

I'm in the middle of a two day project. The project has three components and they are not artfully schedule for my convenience but rather for the convenience and efficiency of my client, a cardiology practice here in Austin.

The three parts of the project go like this:  Set up a small room as a makeshift studio. Have each doctor come to the room to photographed in a suit and tie for credentialing and public relations photos. Then the doctor changes into scrubs and we do a second series of more casual portraits.

After the scrub portraits we take a moment to reconfigure the camera to become a video camera. I add an Audio Technica lavalier microphone, change the shutter speed setting and fine tune both ISO and f-stop to match the 1/50th speed. Then I "mic" the doctor and we do a quick audio level check. I wear headphones to check for hum, hiss, clicks and background noise. When everything is set the ad agency producer asks a series of interview questions while I monitor audio and the visual frame. Once we've got what we need we move on...

Because of their schedules the doctors can't be scheduled sequentially. In the gaps between the interface with the doctors we take the camera off the tripod and use it for a reportage style of available light photography to get images of the hustle and bustle of the clinic and the support teams. We also stage exams and treatment images with models, staff and doctors.

The a99 goes from studio portrait camera to video production machine to handheld reportage camera with ease. I have mine set up to record still images to one SD card and video to the second SD card.  I'm using fast, sharp lenses so I can go from medium apertures when on the tripod and under controlled lighting to fast f-stops when I am going handheld. The Steady Shot IS works well and combined with the a99's clean high ISO gives me a lot of latitude when working in a mostly florescent lit environment. The raw files allow me to largely ignore WB in most casual shooting although I do try to include a white target when I shoot the first few frames in each location. That gives me a starting point to work form as I move through the process.

In our makeshift studio I am lighting with my big 1,000 bulb LED lights through diffusion panels. It works for both the stills and the video. Since the light in that room doesn't change I've been working with the same custom WB since yesterday morning.

The camera is a chameleon that feels right for each situation. I'll update when I finish the project.
Have a great Friday!

2.27.2013

Finally, a book about portrait lighting that I can recommend.


It's rare that I see a "how to" book that's done by someone whose work I really like. And continue to like over time. I first became aware of Neil Van Niekerk's work nearly three years ago. I was researching for my LED book and looking for good, innovative photographers who had already discovered the flexibility and creative power of LED lights on their own.

A link led me to his website and I was very impressed by his portraiture and even his wedding images. (A confession: I don't generally like wedding photography). His lighting is very, very modern and most of the time you can barely tell from the images he presents that he's lit them at all. It's almost as if his models just happen to stumble into spontaneously beautiful light just as he's ready to click the shutter on his camera. I was so impressed that I got in touch with him and asked him to contribute photographs and a bit of writing about his use of LED lights for my book, which he graciously did.

His first book for our mutual publisher was On Camera Flash Techniques. It quickly became a bestseller because he writes well and shoots even better. He followed it up a year later with a book called, Off Camera Flash Techniques which was as good as his first. I recommend both of those books if you are looking for lots of tips and techniques for using small flashes to create portraits and to cover events and wedding. Especially if you are interested in doing those things in a thoroughly modern idiom.

I am interested in this book, Direction and Quality of Light,  because I feel that Neil is working to re-invent our concepts of good portraiture and he's pushing away from the time weathered "rules and conventions" that main street studios and legions of mid-brow photographers have been repeating and recycling for decades.

He uses bright, fresh and very lovely models. He also uses a variety of lighting. His camera gear is state of the art but the real state of the art is his approach to lighting portraits. This is a book I wish I had done. It's that good. It is currently the #1 ranked book on lighting at Amazon.com...enjoy.

Please use this link to order a copy from Amazon.com and help support my writing habit...




2.26.2013

In all the excitement about Sony's cheap, new camera I forgot to make fun of their new 50mm Zeiss lens...

Now don't get me wrong...I love 50mm lenses. God knows I've owned a lot of them. And don't misunderstand me here, I think this lens will be remarkably good. What's not to love about eight elements when two of them are festooned with this magic word that makes us gear junkies swoon, "ASPHERICAL."?

And here's something for all you photo heros who spend all your time trampling through the rainy jungles and alternately trudging through desert sand storms with your lens held out in front of you like a beacon: This lens has been designed to be WEATHER PROOF. That's right. Now when you're at the art festival you don't have to worry about accidentally spilling your Coca Cola on the lens while you are grappling with your turkey leg or corn dog on a stick...

Why am I being so testy? Because I'm pissed that Sony and Carl Zeiss have the big corporate balls to charge a whopping $1500 for a 50mm lens. I think only madmen, Leica owners and madmen rationalize $1500 expenditures for lenses in a class where the 1970's Nikon 50mm 1.1.2 lens might still be the IQ front runner in the field. I guess it will all be okay if Sony also release a Sony branded 50mm 1.4 that's only $750. Maybe I'd buy one of those. But let's get rational for a second.

How much better than the Sigma 50mm 1.4 lens can this one really be and how many of us are going to go through the necessary steps to get the kind of performance that this lens promises in the real world?  For the most part this kind of lens is designed to be a great lens for low light reportage (already an issue for a number of Sony DLST models....) and that kind of shooting is mostly done quickly and handheld. Yes, you'll be holding this impressive monster in your shaky, quaking, vibrating hands and praying to the photo gods that Sony was right about getting three stops of Image Stabilization out of their latest camera bodies.

You may have paid for 180 line pairs of resolution but unless you stick that Bugatti of a lens on a set of sticks I think you'll be tooling along with the rest of us in the lane that gets about 45 line pairs of res from their 50mm lenses.

I'm sure that, at this price, this lens will knock it out of the ball park wide open. But even though I own and have owned BMW's worth of fast lenses over the years, and I always have the intention to shoot them at the bleeding edge of 1.4,  those pesky clients inevitably decide they'd like just a bit more than one lip in focus and we end up using these marvelous optics at f-stops like 2 and 2.8. But when you get to 2.8 you'll have to look hard to find just about any modern 50mm 1.4 variant that's not performing at least up to your ability to hand hold.

So, who is this lens really made for? The people who claim to only want the finest in life. And the finest in their camera bags. But wait, aren't they already shooting with Leicas (large or small)?

Will I buy this instant status symbol and wear it around on the end of my Sony a99 like a Mercedes hood ornament on a gold chain? Not unless Sony rings me up and offers me one for permanent testing (and hey! Sony! if you do that I'll wear it everywhere until I wear it out!!!). It's not that I don't crave, desire and lust after pretty glass that promises instant photographic genius but hey! everyone's got to have limits to their excess somewhere.

What's my game plan? Well, when I compare the pure performance (not the amenities) of the Sony lenses I own with the two Rokinon Cine lenses that I've recently acquired I'm pretty comfortable saying that I'll stick with my old, used Sony 50 1.4 lens (re-badged Minolta lens) right up until the moment I see the Rokinon (or other Samyang variant) 50mm 1.1.2 Super high speed Cine lens hit the market. And if it's priced like history says it might be, and I'm having high roller hallucinations I'll just take the $1500 I might have spent on the Zeiss (in my craziest dreams) and buy four or five of the Rokinons instead.

I'm not putting any links in for the new Sony Zeiss lens. If you can swing that one (and rationalize it to yourself) you probably have someone on staff who can research the best deal for you. Just check in with your house manager, I'm sure they're on top of it.

Important note: As per my track record of consistency in the last four years of blogging I reserve the right to change my mind and run out and get one of these uber-ninja lenses as soon as next week and not even notice the irony....... You've been warned.










Light Once. Shoot Twice.

The title of this blog comes from an ad by K5600 for their HMI lights. The blog is not about HMI lights...

This is an image of one of the most cost efficient and effective lights in my bag of lighting tricks. It's a Fotodiox 312AS LED light.

Light once, shoot twice. 

My business, Kirk Tuck Photography, needs to change its name. We aren't just about taking really wonderful images that have unimaginably good ROI's for clients anymore. Over the past few years we've been progressively adding other content centered services like writing, and video production. As with most successful imaging businesses we've been hard at work offering our (wonderful) clients more services that build on our core competencies. It's pretty logical to think that, because we can light people beautifully and compose them well, on very capable cameras, that we might be very capable of taking another step and also produce some video content while we have time-pressed assets in front of our cameras...  If we can script them and direct them too then so much the better.

The days of flashy website interfaces and visual gimmicks as selling tools are pretty much over. What agencies, clients and businesses in general are learning is that content is king. Having great content trumps just about anything else when it comes to a sticky web experience, and content is one thing that we can provide well. The message is the magic now. The medium is just the packaging.

The biggest synergy I can find for my work, as it's used in advertising and marketing is the combination of still imaging and video production. Clients need still images for portraits and product but they are increasingly finding that concise videos with interesting content are very popular with most audiences. Credit the rise of YouTube and Vimeo for much of evolution in this area.

Our clients have choices they can make when they source their various content. In the visual/video area they can hire a traditional photographer to make the still images and then hire a different person; a traditional videographer, to come in at a different time to create video interviews and other content. They end up paying two fees: they pay for set up and tear down of lighting and backgrounds twice, they pay for prepping the temporary studio, if we shoot at their location; or they pay in terms of lost productivity to have a valuable executive drive, first to one studio and then to another to create the various media assets they want.

Or, they can enlist the services of a flexible content creator and do a bit of time saving one stop shopping.  There is much additional value in finding one business that can provide multiple content products, nearly concurrently.

Here's a perfect example:  For two days this week I'll be working closely with an ad agency that's providing new marketing materials for a medical practice. A group of cardiologists. The biggest requirement for my company is to provide high quality portraits of the doctors as well as a two minute video clip of each doctor talking about his particular specialty. We've got six or seven doctors who need to be represented this way, in stills and video.

The problems we get to solve are these: We're working during the practice's office hours and they have very busy schedules. We need two different portraits per doctor. One in scrubs and one more formal. We're shooting in a small conference room. That's all the fixed space we can get. There is no room for a second lighting set up in a different location.

The other problem is that the doctors (and the practice administrator = client) don't want to do this twice. We won't be shooting stills one day and then coming back for video on another day. It's just not going to happen. They decided that they can only absorb the disruption for one day... 

This all points to a single solution: We have to light once and shoot twice. We have to use a lighting system that will provide good color for our raw still files and also provide great lighting for our video interviews. My ultimate goal is to finish shooting my last still of each doctor, walk over and clip a lavalier microphone on them and walk back to the camera to start rolling (anachronism now since nothing rolls) on the video.

To this end I'll use a modified three point lighting system that can be tweaked on the run. I'd like the light to be a little softer for the stills (add a one stop diffuser to the key light) and a little harder on the videos (subtract a one stop diffuser from the key light...).  I obviously can't use flash for the video so my choice narrows down. We might not be able to block all of the daylight from the room so my choice narrows down again to a lighting system with adjustable color temperatures. That means LEDs.

My shooting plan at this juncture is very simple. The agency wants to use a plain gray background. I'll have one 312AS panel illuminating the background for separation, one 312AS as a hairlight/rimlight, and I'll use two of the 312AS panels as a main light. We'll use a pop up reflector opposite the mains as a passive fill.

For video light I'll use a piece of Rosco TuffSpun diffusion over the two lights to unify the shadows and make them work as a single light. The diffusion won't be bigger than the combined area of the LED panels so the light will still be sharp and a bit edgy. When I shoot stills I'll add a Westcott flag or Chimera panel with light diffusion to increase the apparent size of the light source and create softer shadow transitions.  In essence, the whole project is an exercise in Lighting Once and Shooting Twice.

How much did I have to learn to offer this additional service to my client? I had to learn to light well with continuous lights.  That was easy. I just re-read my book, LED Lighting. The critical part in adding video is coming to grips with audio.

Audio is the make it or break it aspect of "motion capture." The pitfalls are endless. They include conversations in the next room, horns honking outside, air conditioners turning on and off, cellphones ringing, the rustle of a lav mike against a starched shirt and a lot more. 

A rookie mistake is to presume that one microphone will work for everything. It won't. A room with bare, bright walls and hard floors can be rough with a shotgun style microphone, it can pick up too much of the ambiance of a room and make voices sound off. In situations like these a lavalier microphone might be a better choice. It's closer to the speaker's mouth and rejects more background noise by dint of the inverse square law (and you thought that only applied to flashes?).

While I haven't convinced my client of this....yet....I am lobbying for us to help script each of the doctors and have their written content available on a teleprompter program, loaded on a 15 inch screen lap top. I think the doctors would be more comfortable with this and we'd be much more efficient in our shooting. There would be far fewer "ums" and "ahhs" to edit out later. But introducing services can be a one step at a time process.

The bottom line for our clients is that we save them time and money by bundling similar services during one session. There's one bout of pre-production, one travel fee, one set up and one tear down. The lighting has a continuity to the look and feel that helps hold the whole of the project together, visually. The subjects who need to be photographed and interviewed need only commit to one time slot. The client or agency has a single entity with which to negotiate, bill, schedule and celebrate with.  Add in the writing component to create or polish the content and you basically have one stop content shopping.

What is the benefit for my business? Well, for starters, we have a much better shot at keeping existing businesses as loyal clients since they don't need to effect new trials with new vendors to get the new kinds of services they need. If we service our clients well they stay happier we get to keep them longer.

Then, we bill for every service we add which increases the revenue from each project we undertake. That's a win for me but the efficiency makes it more cost effective for the client as well. We're providing two streams of content from one set up and only one touch on the time of their key money makers.

Finally, we move the business from depending on a single product to multiple products. Don't need still photography? Of course we can help you with this video project.  Don't need any visual content but you're having trouble writing that speech? Well remember, we're the ones who wrote that great script for your (fill in the blank).  

Many photographers fear change. I've had more than a few ask me, earnestly, why the hell I bother with LED lights. But the ones who fear change aren't doing nearly as well as the peers I have who dug into new avenues of business and learned new tricks. My clients want more and more services and they want more and more efficiencies in their projects. We are both a content business (IP R US) and a service business. The only important part of being a service business is giving clients what they need in a way that makes them happy.  And provides a good ROI that they can see in a glance.

Our mission now is to provide content that moves the needle. We're out to show our clients that better production, and better seeing, might have a higher initial cost but will pay off many times over in it's value to their audiences. I'm committed to controlling as much of my clients' visual messaging as possible because the value of content is all interlinked. A great photo coupled with bad design doesn't sell, and neither does a crappy photo with great design wrapped around it. When we learn new skills that build on our old skills we have a more valuable package to sell to our clients. We become a more important part of their team.  And that's just good for business. Everyone's business.

Light once. Shoot twice. That's the reason we leverage the flexibility of LED panels in our work.

( I am using the Sony a99 camera and the 85mm Rokinon 1.5 Cine lens for the portraits and interviews. The a99 has a headphone jack so I can monitor audio. I'm using a Sennheiser wireless lavalier microphone system to record audio. I have a professional Audio Technica Lavalier microphone (wired) as a ready back up.  We'll shoot 1080p at 24 fps in AVCHD and provide the agency raw footage for their in-house editor to use.... Ah, the details...)







2.25.2013

Smaller, Cheaper, Lighter, Faster. It's Sony's Rebel.

I'm a fan of the Sony a57 camera. It's got a great 16 megapixel sensor in a pretty decent body, coupled with an electronic viewfinder. The thing I like best about the camera is the really decent, HD video I can get out of it. To be honest, if there was one thing I'd change about the camera it would be the EVF. No, I don't want an optical finder, but the EVF in the a57 is an LCD version that's not as detailed or clear as the EVFs in the Nex 6, Nex 7, A65, A77, A99 or RX1. The a57 would have been a perfect intro/tyro camera if it had been launched with the OLED version of the finder. But then would anyone have ever needed to upgrade?

Well, along comes the a58, and while it takes one or two steps backwards (black plastic lens mount??), it does comes with the higher spec finder. It keeps the same battery as the a57 (and most of the rest of the Sony SLT line) and it's also going to be bundled with what Sony is referring to as "an improved version" of their 18-55mm kit lens. And I am not unimpressed with the current kit lens.

When I first engaged with the Sony SLT system I bought two of the best cameras they had available at the time, the a77s. A couple of months later I bought an a57 as a lighter, cheaper, carry around/throw down camera and used it mostly with smaller and lighter primes in the place of a point and shoot camera. While the finder isn't as good as its older siblings the actual images are great. Right in line with competitive 16 megapixels cameras from Pentax and Nikon (in fact, it was the same imaging chip).

At one point Ben needed a better video rig so I passed the a57 camera, the kit lens, a Rode shotgun mic and a 55-200mm lens along to him and he's made good use of it. I thought I'd just go through life with the two a77s but I missed having a cheap camera that I could kick around, leave in the car and spill red wine on without too much worry so I picked up another one.

Now I'm getting ready to pass along that a57 (or sell it) and pre-order an a58. Why? Because it's cheap, has a much improved finder, has the latest generation Sony imaging chip inside and, did I mention that it seems as though it will be priced under $600 with a new kit lens?

The interesting thing about digital imaging now is how the new generations of consumer targeted cameras are getting really great sensors in them. Nikon users are beside themselves with impatience waiting for the availability of the new 24 megapixel D7100. And can you really blame them when you find out that it comes with a new sensor that sports NO anti-aliasing filter? I've always felt like that was one of the sole advantages of the Leica digital M's and the medium format cameras; the lack of an AA filter gave a better rendering of really fine detail which leads to a greater impression of sharpness and overall file quality.

Also, reading between the lines of the Nikon press releases it seems as though Nikon will be adapting some sort of on chip distance measuring meant to speed up camera AF (a la the V1 series) in live view and video. Who knows, with all the improvements Nikon seems to be making in the pursuit of good video performance do you think it's only a matter of time before they move to a mirrorless APS-C camera? Or even a fixed mirror camera?

While the Sony a58 doesn't use the new 24mm anti-AA non-filter the Nikon sports it is the first Sony camera out of the gate with a brand new 20 megapixel imager. Seems like a step down from their current 24 megapixel rectangle, as expressed in the Nex 7 and the a77, but if Sony is able to provide the same kind of great dynamic range with better noise characteristics at high ISOs then I'm sure many will embrace it.

I love it when companies make cheap cameras that, in the hands of people who know what they are doing, can perform in the same ballpark as much more expensive and feature laden cameras.

Who needs a fancy point and shoot when you can get so much performance for so little in cameras like these? And who needs behemoth cameras when the on sensor performance is so incredibly close? At some point it really is all down to the lens on the front and the brain in the back of the modern cameras. Almost like the days of film.....

The one thing missing on the a58 that I'm waiting to confirm is a plug for an external stereo microphone. If I'm wrong and they have included one then nothing stands in my way. We will extend the line...













I liked MIchelle's portrait in color but I wanted to see how it would look in Black and White.


Most of my earlier images of Michelle were done in black and white so I decided I wanted to play with the photograph of her I put up on the blog earlier today and see what it would look like if I'd been shooting it on my old favorite, Tri-X film.

I've resisted buying Silver FX Pro for years thinking that I could do just as good a job in channel mixer or the black and white adjustments in Photoshop. I downloaded the SilverFX a few minutes ago and gave it a trial run. Darn. It's good. Now I'll need to buy it. Yes.....it's better than I am at hitting the old Tri-X film feel.

I like the portrait so much more in black and white. No extraneous information, just Michelle and those beautiful eyes.

SilverFX is a plug in for PhotoShop, Aperture and Lightroom which helps make easy and (apparently) wonderful conversions of color files into black and white. It's built by Nik software and you can go to their site and download it for a 15 day trial. At some point you will become addicted and they will send you serial numbers to plug in and free the program for long term use.....after you send them the credit card info. You can go the more expensive route and keep shooting film...


A portrait from this morning. A model from twenty years ago dropped by...


I've shared a number of black and white photographs of Michelle with you over the past year or so. Most of them were taken between 1992 and 1994. She was astonishingly beautiful. Twenty something years later I think that she is even more beautiful. More subtle. More interesting.

We spent some time this morning catching up. Then we made some portraits.

I did a few things differently this morning, technically. To start with I used a set of Lowell VIP hot lights for my illumination. They are very small and inexpensive tungsten lights that my friend, Paul, no longer wanted. He dropped them by the studio last week. The lights are lamped with 250 watt bulbs.

I set up two four foot by four foot Chimera diffusion panels, side by side, with the panel closest to the camera angled to carry light across Michelle's face. I used a black panel to the opposite side to reduce room spill light and to make the shadows on the other side of her face deeper.

When I started shooting I was working with the Sony a99 and the new 85mm Rokinon lens but the focal length was too short for what I had in mind. I rummaged through a drawer and found my Hasselblad 150mm f4 lens and an adapter. The longer focal length seemed just right to me. Even wide open the older lens (made for medium format) still has enough bite for a lovely portrait.

I shot with the lens wide open, on a tripod.

Simple lighting. Simple tools. Gracious model. 

2.24.2013

Yeah. That's what I'm talking about. My second book, on sale for $1999.98 at Amazon...





Living is a small town in Texas, away from the hustle and bustle of the sophisticated capitols of the world, I had no idea that my prowess and renown as an author was so recognized and valued. Currently, on Amazon.com, you can buy a Chinese language copy of my second book, Minimalist Lighting: Professional Techniques for Studio Lighting for about the price of a new, Nikon d600. Since my books don't have a history of dust issues I'd say it's a great bargain.

Of course, if you don't read Chinese you can always come down market and enjoy an English version for around $23.

Fun with retail. No doubt.