Wednesday, May 30, 2018

Battle of the formats. Which one handles live theater photography better? Which is more fun to shoot?

Jill Blackwood at "Dot" in "Sundays in the Park with George".

Oh, we've been busy taking photographs again. I was doing a little informal test on Sunday and Tuesday. I photographed two different rehearsals of the Steven Sondheim play, "Sundays in the Park with George" with two different camera systems. On Sunday I shot with the Nikon D800 and several different lenses, last night I shot with the Panasonic GH5 and two different lenses. The results were interesting and the contrast between the working methodologies was even more interesting. 

It was an illuminating comparison because the lighting, costumes, actors and sets were identical and I could go back and compare results in the same scenes; one set shot with a full frame camera, set to raw, and the other shot with a micro four thirds camera set to fine Jpeg. While there are certainly aesthetic differences between the sets of files there were bigger differences in the way I took the photographs and the difference in efficiency between the mirror free camera and the mirror burdened camera....

This is in no way an exacting test of the two cameras because I was using an odd collection of mid-tier Nikon zooms (as well as a bonafide "antique" lens = the 70-210mm af-D) while I was taking advantage of my investment in great glass for the Panasonic cameras (Olympus Pro 40-150mm f2.8 and the amazing 12-100mm f4.0 zoom lenses), but there is more to imaging than format and glass.

I was restricted to using the Nikons to Sunday evening because of their loud shutter noise. The positive trade off was that since we didn't have an audience in the theatre for the technical rehearsal I could move around anywhere I wanted and get as close to the stage as I wanted. That helped give me a more dynamic set of images and I never had to worry about disturbing "clients." (audience).

That's a huge restriction! If I get serious about shooting theater again with the Nikon cameras I'm certain I'll quickly replace the two D800 variants with at least one D850 just because it has a much, much quieter shutter. I had toyed with buying a product called "The Camera Muzzle" but by the time it came onto my radar I'd missed the shipping window to be able to use it on Tues. Having it Sunday wasn't important (no audience to piss off) but spending $150 on something I may or may not use in the future is irrational, even for me. 

(The Camera Muzzle is a soft camera cover with lots of insulation. It fits over the camera body and lens but has enough room to get your hands inside in order to operate the shutter button and camera controls. Its whole reason for existence is to muffle the noise of mirrored cameras and make them acceptable (acoustically) when you are shooting in certain environments. As I understand, it's not nearly as good a dedicated hard blimp (starting at $1,000) but for $150 does a good job. Your sensitivity and tolerance may vary. Here's a link: CAMERA MUZZLE-FOR PEOPLE WHOSE CAMERAS MAKE TOO MUCH NOISE!!!  It might be perfect for some event spaces where noise can be an issue. But given the bulk, the tendency for your hands to get hot and sweaty, and the not 100% noise abatement, I'm thinking we'd all be better served to use cameras with silent shutters.....

UNLESS---- But "hold that thought." 

From a user point of view (and the owner and purchaser of both systems) I can say that the Nikons operated just as expected and, beyond the noise and the need to constantly chimp exposures, they did a good job making images under fast changing lighting and color temperatures. Had I used the latest and greatest lenses (and a D850) I would have to say that the system has the potential to make superior images for theater work. If I continue to use the big Nikons for live theater shooting I'd certainly want a fast 70-200mm zoom and an equally fast 24-70mm zoom. My current "theater photography wish list" if I want to shoot with the Nikon cameras reads something like this: 2 X Nikon D850's @$3300 each = $6600. 1 X Nikon 70-200mm VR e f2.8 zoom = $2,800. 1 X Nikon 24-70mm VR f2.8 = $2400. The revised system would set me back nearly $11,800. That's a tidy sum. 

And the major downside would be that after spending all that money I would not have an EVF, which I think is an amazing benefit for theater work, or work on any project where exposure and color temperature are constantly changing... Add to that the enormous weight of those fast lenses and even a buff young thing like me cringes at handholding the two cameras and their attendant lenses for hours on end. 

Are you still "holding the thought" I asked you to hold a two paragraphs before? Cool. So let's take a "brand break" and talk in general terms about camera noise. A worst case scenario for me is having to shoot images of a dress rehearsal in a theater just packed with people. Even worse, to have to shoot a performance with a packed house of paying customers in a scheduled show run. Many Fuji, Olympus, Sony and Panasonic mirrorless users will, no doubt, puff their collective chests out and stridently (and usually with a patronizing tone) let me know that THEIR SUPER DELUXE CAMERAS HAVE TOTALLY SILENT ELECTRONIC SHUTTERS as an option. 

Well, good for you. Going forward, in all but the oldest and least well equipped theaters (those still using tungsten lights), you will NOT want to use your "silent shutter" to shoot the action on the stage. Not going to work. Not going to make your client happy. Not going to create problems that can be easily solved in post production. Your silent shutter has just been shut down by LED theatrical fixtures!!! You'll read this, doubt me and then find out the hard and expensive way all on your own...

But here's the deal: While current, high quality LEDs designed for video and still photography use various electrical designs to keep them from flickering during short exposures (1/60th and shorter) the makers of light fixtures for live theater are much more concerned with output power, beam throw and automatic motion control than they are with quelling all the flicker that your cameras might see but which audiences will almost certainly NOT see. More power, more flicker and more cost savings on "un-needed" things like highly regulated power supplies. 

I used to rejoice that my new cameras (almost every mirrorless model and many new DSLRs) had silent shutters but now I ignore them unless I am shooting in a courtroom or need ultra fast (electronic) shutter speeds. The LED lights in Zach Theatre (and in many other venues in which I've worked) create flicker which manifests itself in each frame as a series of light and dark bands which are very, very visible....to everyone. 

Yes, some cameras have features that promise flicker reduction but it rarely works out perfectly in the flawed, artifact-y, real world. 

Hmmm. Last night I was sitting away about six feet away from the closest audience members. No one was behind me or beside me, it was the row six feet in front of me that I was concerned about. Last night was the dress rehearsal and we had an invited audience (family and friends)  so it wasn't a "life or death" but we still want our fans to have a great time so I wanted to be as audibly discreet as possible...

When it got quiet I switched over to the electronic "silent shutter" and immediately saw banding everywhere. The trade-off wasn't worth it. We needed the photos for marketing. I switched back to the mechanical version.

The GH5 has a fairly quiet and well damped shutter. Much, much quieter than the full frame Nikons. But they still make noise. In a raucous show like The Rocky Horror Picture Show, or Tommy, the Rock Opera, or Priscilla Queen of the Desert the sound of a small camera shutter is well hidden by the music and bombast of the performances. But there are quite a few moments in a more cerebral play, like one about George Seurat, that are very quiet, just dialog with lots of dramatic pauses, and, yes, sometimes you can hear the proverbial pin drop. Or at least the shutter of modern camera. 

For most of the performance I tried to time my shots to the sound design on the stage. In all but the quietest moments the shutter was inaudible to the people in front of me. In truth, I could barely hear it in most parts of the play. If everything is equal and you are trying to decide on a good camera for this kind of work it certainly would behoove you to check out the mechanical shutter noise, and noise profile (sharp and tinny or low and mellow) before you toss down dollars...

So, what's my assessment in the battle of cameras in front of the stage? Here's where the Panasonic GH5 wins: 1. The EVF offers the most elegant way to constantly check color and exposure without missing shots because you had to chimp and then check what you have already shot. Pre-chimping through the finder is much more efficient and fluid. In this situation even the very best optical finder is a burden to fast and effective shooting. That big, clear window isn't going to buy you any better focusing or composition but will add a number of steps to your ability to constantly adapt to changing lighting and scene conditions --- second by second.  2. The Olympus 40-150mm f2.8 lens is bitingly sharp and can be used all day long at its widest aperture with no compromise to optical performance. None. The image stabilization in the lens is perfect for the lens. And the 12-100mm lens is in exactly the same rarified strata of lenses. A big win. Yes, I know that Nikon lenses are great as well but at more than twice the weight (not counting the weight of the cameras) they quickly become a burden for long periods of handheld shooting. Oh, and you lose two stops of depth of field with the bigger lens when used wide open. Not important in one person scenes but this can be critical if you are trying to spread focus deeper into the stage for group shots. 3. The sonic profile of the shutter in the GH5 is much lower and more pleasant than the sound of the older Nikon shutters. I do like the new D850 shutter but I haven't done a side by side comparison yet. The acoustic jury is still out.

When I tested the GH5 files against the Nikon D800e files in lower light situations I found that using the GH5 at ISO 1250 got me into the same noise ballpark as files from the Nikon taken at 3200. The noise in the GH5 files is more uniform and grain like and, at 100%, the Nikon starts to show tiny white specks which are not visible when downsampled to the same size as the Panasonic files. 

The pluses for the Nikon cameras are all about format size. The bigger sensor is better overall with noise at higher ISOs. The bigger sensor does give you a two stop advantage when you want to throw clutter in the backgrounds out of focus. The bigger sensor will give you more detail (if you nail focus and exposure correctly) in your images when you blow them up. 

After shooting about 1500 images in each system on the same set I'll give the nod to the Panasonic jpeg files which handled noise well, were every bit as good as the Nikon files at the sizes we'll use the images, and gave me a good, quiet shooting system that I could handhold for hours longer.

If you are currently shooting with one system or the other there is only one compelling reason to switch to or stay with m4:3 and that would be the utility of the EVF. The Nikon stuff really comes into its own for other kinds of shoots we do for the theatre. The bigger cameras are at their best when we do set up shots with big flashes for marketing and posters, with rehearsed moves and total control. In those situations the superior imaging quality of the sensors can be fully leveraged. 

No winners. No big losers. Just different ways of working in a specific kind of location. 

 Matthew Treviso as the boatman.
Paul Sanchez at Louis the baker. Jill Blackwood at Dot.

Amber Quick as "Nurse",  Brian Coughlin as Randolph and B. Mahstedt as Louise

Tuesday, May 29, 2018

24,000,000 Pageviews for the Visual Science Lab as of 1:44 p.m. today.

Leica M6+35mm Summicron. Tri-X. Family dinner at Asti.

Pure dogged determination and bad time management skills make for a long run on a niche blog. Did anyone like the last 3651 posts? Drop a comment into the mix and let me know. 

And if you are unsatisfied with the content I'll return your initiation fee AND your deposit. We don't charge here so we make it up with volume...

Weather Service Predicts Record Highs for Central Texas this Week. Time to break out the shorts and the lighter cameras...


Actor/Talent/Model and Friend, Noellia, and I spent a couple hours one Summer 
making photos on one of the hottest days of the year. 
That's the Barton Creek Spillway in the background.
We were using a Sony Next-7 and the 50mm f1.8 lens at the time. 
Lots of fun stuff to shoot when everyone is out playing in the water.

The national weather service is predicting that we're about to get socked with some record high temperatures near the end of this week and over the next weekend. There's a high pressure zone parked right over the top of the Austin and San Antonio area. You would think that Austinites would head indoors and find places like cold, dark movie theaters and chilly malls to lurk around in, and I'm sure some of our recent transplants will, but most of the city's core population will see it as an excuse to hit the local pools; natural and manmade.

I'm trying to be better about too much sun exposure so I've shifted to the 7:00 a.m. swim practice for the Summer months. The water is getting warmer but that didn't stop our masters swimmers from hitting the pool in force today. We had four and five people circling per lane and another group stepping in at 8:00 a.m. as we exited the early workout. As the water temp goes up our yardage tends to go down a bit. It's just as easy to get over heated in a warm pool as anywhere else.

So, what are the long practiced tips for surviving photo shoots in the outdoors in the Texas Summer?

Here are mine:

1. Start early in the day. Get to your locations at first light instead of waiting for the sun to warm everything up. If you start early you can finish early. While the sun might be at its peak around noon to one p.m. the heat continues to rise until about 5 p.m. Finishing by 2 or 3 pm is how the landscapers do it....

2. Don't wait until you feel thirsty to start drinking water! By the time you feel thirsty you are already getting dehydrated. Start with a big glass of water even before the first cup of coffee and then repeat all day long. And, actually, yes; coffee counts as part of your hydration, if you are an acclimated coffee drinker.

3. Just as oil companies transition from Winter gas to Summer gas formulations it may be time to leave the Nikon D5 or Canon 1DX and the big ass zooms back at the house and transition to "Summer" cameras. I'm back to packing the much smaller and lighter Panasonic GH5's and a smaller assortment of lenses. The heat makes for different priorities AND the light levels seem abundant. 

Less weight makes for less work which makes for less thermal build up in your own system.

4. I own a bunch of black camera bags but I also own a big Domke camera bag that is a very light beige color. All those black bags and cases do a great job absorbing heat. The beige one does a decent job reflecting it. I also take a FlexFill (circular collapsible reflector) along and use it as a bag cover when I have to stop and shoot in an area where there is no shade. I put my bag down, pop open the reflector and put it on top with the silver side facing up toward the sun. 

You may think that cameras are built to handle heat but anything over 104f (and a black camera can hit 140 in direct sun) causes increased noise and artifacting. If you are shooting video you'll find shooting in direct sun can also cause so much heat build up that your camera shuts down! I'm always trying to find ways to keep black cameras and lenses covered when I shoot in full sun. 

One more thing, if you are used to relying on hard stop infinity settings on your lenses be aware that the heat can cause metal lenses and glass to expand and will change marked focus accuracy!

5. Wear a freakin hat!!! You need to create your own shade and when the sun is brutal a good hat will make a big difference. Get one with some good front overhang so it can help keep sunlight off your viewfinder. 

6. Dress for coolness but be sure to cover up exposed skin or douse it regularly with sunscreen. I prefer to cover with loose, thinner clothing than to coat myself with chemicals. There are lots of technical shirts, even long sleeved ones, with high SPF ratings.

7. It may be a perfect shot that you are waiting for but if you feel too hot it's time to make for the shade, douse yourself from head to toe with water and stay still for a while, letting evaporative cooling do its work. If you feel ill effects then get into the air conditioning. Another shot will certainly be there tomorrow. Heat stroke takes all the fun out of photography...

8. If you plan on using a tripod you might want to get a nice light wooden one that won't transfer heat when you grab it to move to the next location. If you don't want to buy a new one then wrap some fabric around the thick, top legs and secure with gaffer's tape. At least when you grab the tripod legs you won't burn your hands. 

9. Don't leave your cameras in your enclosed car; especially if you are parking in full sun. Car interiors get super hot and while the circuitry in your camera may not fry you can imagine the damage cumulative heat does to rubber weather sealing, faux leather texturing and LCDs. Just take your camera in with you like we all used to do in the film days. We all knew that film didn't mix well with heat....

10. Instead of long expeditions think in smaller chunks of shooting interspersed with lots of stops for air conditioning and beverages. Topping off a day of shooting with a nice craft beer might be a good way to restore some lost electrolytes....

That's pretty much my list. We could get more detailed and talk about keeping a couple gallons of water in your car, making sure your tires aren't getting brittle, and a bunch about shoes, but I'm aiming the above advice toward urban shooters who aren't in remote areas. But, Heat is Heat.


Monday, May 28, 2018

An incidental shot from the tech rehearsal last night that.....

...makes me appreciate the nuanced eye of the the show's lighting designer and also adds to my appreciation of the optical qualities of the Nikon 70-210mm f4-5.6D Ai Zoom lens. An elegant rendering from the long end of a consumer zoom lens, used wide open...


From: Sundays in the park with George. Zach Theatre. Starts this week.

Old School. Shot at a fashion show in South Beach, on the beach. Old school film work with a Leica R8 and the venerable 90mm Summicron.

Two assignments in one city in one week. It was 2001. We were Shooting for a telecom company called, Broadwing Communications. We were shooting for a south American fashion show. We did digital for the corporate folks and color negative film for the fashion. Burning the candle at both ends; pounding the room service at the Delano South Beach Hotel. That's back when people really knew how to spend money....








A quick review of my 2nd copy of the Nikon 70-210mm f4-5.5 Ai Zoom. A cheap, battered copy I bought for $75.


I'm always a bit curious about older lenses. I'm a cynic. I think camera makers use new lens design tools not necessarily to make lenses that are distinctly better than their ancestors but to make the new lens designs easier to manufacture and cheaper to make. I'm sure new glass types are wonderful and some of the newest lenses can do amazing things, in the right hands, but I am equally sure that there is a general race on to make lenses more uniform; more consistently consistent, and if they get some optical improvements then that's considered a bonus...

To a degree I think lens design is driven by an uninformed and loud group of consumers who have different ideas about what is essential in a lens than the lens designers themselves did a decade or so ago. The emphasis now is on lightweight, fast apertures and (because of very poorly conceived lens test interpretations) sharpness across a flat field (to the detriment of potential sharpness in the center 2/3rds of the lens). 

I was shopping for a 70-200mm lens last week, knowing that I'd soon be shooting some theater productions with the newly acquired Nikon cameras. I was shocked to see the price of the current 70-200mm f2.8 Nikon lens was $2800. I was so miffed at the rampant inflation for this product category that I abandoned my search for a current product all together and decided to plumb the opposite end of the market. I had in my own inventory a Nikon 70-210mm f4.0-5.6 manual focusing zoom that I'd picked up cheap a while ago. I subsequently read that Nikon doubled the focusing speed on the "D" series version of the same lens and I searched out a copy of that version. The one I found is very functional but a bit beat up. That's okay since I spent only $75. 

I took it along with me last night to do technical scout of Zach Theatre's newest production in anticipation of the "official" shoot we'll be doing on Tuesday. I didn't have overly optimistic expectations that the old 70/210 would be anywhere near as good as a modern lens but I wanted to try it: under stage lighting (this play has a very contrasty lighting design...), handheld (no VR back when this lens was made and originally sold) and at it's wide open aperture (look, I figure I'd just be using this for the longer end and it's already f5.6 from about 105 onward).  Seems like a viciously unfair test for a lens that's decades old --- right?

Well, I'm not so sure. Below are three variations from the same digital frame. The older screw drive lens was able to nail focus quickly and well. The lens also resisted flaring. But the thing that I appreciated is that the image is nicely sharp. As sharp as I expected it could be on a Nikon D800 set to 3200 ISO. 

After seeing the results and comparing similar files shot with the 24-120mm f4.0 and the Sigma 50mm f1.4 Art lens I've called off my shopping and researching for a newer or faster telephoto zoom. While it may not check all the boxes for you this one delivers enough image quality for me. If I need a better lens I'll pull one of the Olympus Pro lenses out of the drawer and put it on a Panasonic GH5. Not a bad deal for a whopping $75. Sorry, no link. You'll have to find your own.

The full frame.

A tight crop.

Getting into the 100%, pixel peeping realm.



I'm as interested in cheap lenses as I am fascinated by lenses that purport to scrape the ceilings of possiblility.



A VSL blog reader, Stephen Kennedy, kindly sent me a lens. He seemed to understand my attraction to older, less expensive, more mainstream lenses from days gone by. The lens he sent along is a Nikon Series E, 36-72mm f3.5 Ais. It's manual focus only and a short zoom lens and it fits right into the genre of lenses I like to put on the front of my cameras when I head out in the midday sun for a bout of photographing. A terse zoom range, no frills and imbued with very decent performance- especially when used at f5.6 and beyond. 

There are some other Nikon Series E lenses, released in conjunction with the low cost Nikon EM SLR, that show up on the radar screens of old lens aficionados, the most popular being the 100mm f2.8 and the very, very well regarded 75-150mm f3.5. All of them were above average performers but never attained a huge following when new mostly because they represented a move away from Nikon's traditional heavy metal lens construction which always seemed to promise a certain indestructibility. 

I put a 52mm circular polarizer on the lens, attached it to the front of a Nikon D800 and set out to see just how good ( or bad ) this little jewel of a zoom lens could be...

Overall, I found it to be smooth, fairly sharp and well behaved. The one aspect that could be a deal killer for someone looking around for an inexpensive alternative to today's pricier lens fare would be the lens's close focus limitation of 4 feet. It makes casual portraits a bit dicey.