11.05.2019

A Wild Mix of Cameras during Several Pre-Opening Rehearsals. Pentax, Fuji, Lumix.


We're heading into October so, of course, Zach Theatre is about to open our Fall, main stage production of "Dracula", directed by Stephen Dietz. The stage set is pretty magnificent and the lighting design is dramatic, wonderful, and filled with nerve racking (for the photographer) extremes between light and dark. The two rehearsal shoots I did were a text book experiment in using the shadow slider in Lightroom post production to bring detail into areas that read as mostly black in the camera previews. Definitely a play for which you'll want to use raw files, if for no other reason than to lift shadows with less noise...

As an additional experiment I used three different cameras during the two days of shooting. On the first day I used the Pentax K-1 and my small handful of lenses for just about everything. I did bring along a Fuji X-H1 with the 56mm f1.2 APD but it stayed mostly in the bag. Midday on Tuesday I found myself over at Precision Camera picking up a different full frame camera that I've been interested in trying out for both video and still photography work; the Panasonic Lumix s1, along with its companion 24-105mm f4.0 lens. I thought it would be interesting to see how the files from the actual stage show compared when all three cameras were confronted with the same lighting and scenery.

The Panasonic s1 is the newest of the three cameras and uses a new 24 megapixel, full frame (24x36mm) sensor. The Pentax uses a very well regarded, 36 megapixel, full frame sensor, while the Fuji is an APS-C format camera that uses a sensor that's about one generation back from the current state of the art. I literally had no idea which camera would emerge as the best, as far as image quality was concerned, and I had some idea of how much of a difference the lenses would play in the whole drama of photographing drama with different systems. 

I guess I could just read all the reviews of the different cameras on the web and become somewhat vaguely expert on the subject but that seems a bit like cheating so I really did want to put the rubber on the road and hit the gas with all three candidates.

Each camera had its own set of advantages: the Fuji X-H1 was well served by lenses that were picked from the outset to be highly useful and selected for theater photography. The go to lenses for that system were the incredibly sharp and well balanced 50-140mm f2.8, and the really good all-arounder, the 16-55mm f2.8. Since both lenses are well corrected, even wide open, I found myself leaving them at, or around, their widest apertures. In this way I could get a one stop (at least) advantage over the other systems which would translate into a welcome drop in ISO, giving the Fuji a fighting chance at matching up with the other two. In fact, I shot the Fuji at 1600 ISO while I kept the other two cameras at 3200 ISO.

The Lumix was at the most disadvantage; I had never used the camera before and barely had the battery charged before I headed out the door to get to the theater in time. I even stuck the (thick and well composed) owner's manual in my camera bag; not that I'd have time to reference it in the darkened theater, but I might have consulted it during halftime (excuse me theater people, I meant intermission). The lens on the Lumix was good and I ended up sticking close to f4.0 (max. aperture) with that one as well. Several  things about that camera were the absolutely amazing, the dual image stabilization that is purported to give nearly six stops of steadiness. It's about as close as I've seen to the benchmark Olympus OMD cameras! And that's very high praise. The second thing that worked in the s1's favor is that the (very rational) menus are much the same in style and layout as the ones in my beloved G9's. Getting up to speed in the half hour before the curtains went up was not nearly as taxing as I thought it might be. Finally, while the Lumix doesn't have the full on LED lighting prowess of exterior buttons and dials that the Pentax K1 features, the Lumix does have a function that lights up the most used buttons and controls on the back of the camera. A nice touch. 

And then we come to the last camera in the mix, the full frame Pentax. I thought it would stumble on some issues like focusing since I'm mostly using older AF lenses that still rely on the less elegant whirling screwdriver method of auto focusing. A method given to a bit of hunting and sometimes, imprecision. I used two lenses for nearly all of the Pentax shots: the newest 28-105mm f3.5-5.6 zoom (latest FA - HD version) and the current 100mm f2.8 macro lens. The Pentax only got to play during the first, tech rehearsal because, as a traditional DSLR, it isn't very quiet and the second rehearsal included a "friends and family" audience and a few media guests. Not a good idea to blaze away with an old style mirror thrashing camera if the theatre is trying to be customer focused....

I won't keep you in suspense. While the Pentax and the Lumix would definitely outshine the Fuji at low ISOs and in typical use scenes where dynamic range and overall resolution are crucial, having good lenses for low light is critical for a holistic performance. The X-H1 with the 50-140mm f2.8 was by far the fastest and most assured at autofocusing all the scenes; from bright to stygian. It locked on quickly and, looking through the take from that camera there are NO missed focus shots. The Fuji zooms are bright and sharp, and easy to work with. The capper for me was the ability, during post processing, to insert the Eterna profile into the mix when developing the raw files. It added a much needed boost to the shadows and imparts a very well controlled highlight rendering to the files. Since I was able to shoot at a one stop (at least) advantage over the full frame cameras the noise rendering between all three cameras was more or less a toss up. I'm sure if I had to use all three at ISO 6400 the Lumix would have been the least noisy, followed by the Pentax and then the X-H1 in last place. But I will say that the "difference" between first place and third place would be, at the most, 5-10% different. 

By rationalizing my technique over the three cameras, and by also setting up white balance identically between the three cameras, I was able to use all of the resulting photographs more or less interchangeably. You'd be hard pressed to tell which files came from which camera if you are not cued by the look/character of the lens and the way the backgrounds are rendered. But, again, the difference in f-stops closed that gap somewhat, as well. 

To be quite honest I entered into the test with a small preference for the Lumix s1. I wanted it to win by a wide margin. It's a wonderful hunk of camera with one of the nicest sounding/feeling shutters I have ever experienced. I also had high hopes for it because of the many reviews I've read which lauded the noise performance and dynamic range of the shutter over and over again. And, in a fair test, it may actually be a better sensor than the rest of the 24 megapixel, full frame sensors on the market now. But in the end it all comes down to system performance. In a month or so Panasonic is supposed to introduce their 70-200mm f2.8 zoom and then maybe the entire theater shooting calculus will change and it may be the preferred system. Maybe.

I could say the same things about the Pentax K-1. In this test it was hobbled by lenses that were not optimum for the shooting task. But, surprisingly, the files look quite good. I could rush out and buy the currently available 70-200mm f2.8 for that system and do competent work but I'm not so sure it would be a good long term investment. The noise of the shutter and kinetic mirror already mitigate against the camera for use in the kind of theatrical assignments I find myself and, well, let's just say that system support for Pentax right now is a bit less than transparent. I'd hate to splash out nearly $1,800 for a lens, in a secondary system, which may or may not have continued camera support for full frame.

My takeaway? Familiarity breeds fluidity and control. The X-H1 has one of the softest shutter sounds of any camera I've used and that's important because you can't always default to electronic shutters when shooting under light sources that can cause flicker and uneven illumination of the photographic frames. I've done a good job selecting just the right lenses to make my jobs photographing live theater as perfect as I can get it. 

There are still come challenges to theatrical photography that even the newest and best sensors can't overcome. The difference in light intensity between an actor standing in a bright spot light, and the much less bright accents lights on much darker parts of the set or the background, is too much for any sensor to bridge. Since blown highlights are irrevocably lost the faustian bargain is to expose for the highlights and then try to lift the shadows as much as you can without the resulting noise becoming excessive. One would like to think that a bigger, newer sensor would make child's play of this issue, compared to a smaller sensor, one generation removed, but my "real world" tests show me that the difference in shadow performance is not that great. When comparing all three cameras with a three stop shadow boost I found that all of them started to generate small, white speckles randomly throughout the darkest areas of the images. 

And while we talk about this I want to make sure readers understand that these artifacts are not coming from long exposure noise since all the samples compared were shot somewhere between 1/125th of a second and 1/320th. It's just pure shadow noise. 

I've seen tests from websites that review cameras showing pushes of up to five stops which look much better than the samples I was able to pull from my tests. I can only conjecture that the tests are making full use of additional noise reduction somewhere in the process. After I compared all of the files I too turned to noise reduction techniques offered by Adobe Lightroom in order to deliver a better product to the clients. But it's always a compromise between overall detail and lower noise.... 

I'm sure there are advanced programs that would help me fine tune my noise reduction results but most are not compatible with the big batch processing routines that I normally need to use for quick turnaround of hundreds and hundreds of images. 

That the Fuji camera was right there in the race with the two full frame cameras is interesting; and refreshing. We spend so much of our time accepting what we read on sites that seem authoritative but we never really spend time vetting the information we seem to take for granted. As I said, I headed into this "experiment" with the prejudice of wanting the Lumix camera to be "head and shoulders" better than its two competitors but wasn't the case. 

Sure, if I fine-tuned all of the Lumix camera's advantages and coupled the camera with lenses costing $3,000+ each I am certain that the advantages of the sensor would become more obvious, less clouded by the deficiencies of smaller aperture and lens quality. The same goes for the Pentax camera. But it's nice to see that an optimized APS-C approach to a job can deliver really good, competent and competitive results. And with lenses that are less expensive than the ones I would need for either other system. 

In the end all three cameras have their charms and all three are fun to shoot with. I'm pretty sure that for my live performance work I'll keep using the Fuji cameras, for now. The Panasonic seems like it would be the optimum studio camera but we're working on comparing the s1 to the Pentax K-1 using flash for a studio project today. I have a sinking feeling that the one area in which the Pentax will be a clear winner is in the studio --- because of the direct viewing of the finder. But, having drunk the mirrorless Kool-Aid(tm) I am equally certain that I'll miss stuff like pre-chimp previews with all imaging parameters baked in as well as good face detection AF. But again, that's what the testing is for.



























7 comments:

Ray said...

I totally get that my needs are a world apart from yours, but I gave up an APS/C sony for a Panasonic G9 and don't miss one single thing about the dearly departed a6300. My new m43 sensor and camera is 100% good enough for me. Love your stuff. Keep up the good work.

Joe said...


Pentax's 77mm/1.8 Limited lens might be suitable low-light short telephoto lens theater work with the K-1. It's sharp and very small, albeit with screw-drive focus.

Neil Swanson said...

I'm curious about your (mostly Fuji) AF habits. AF-S or AF-C? The Nikon rarely ever leaves AF-C and I move the focus point(s) to where they work for my moving subjects, even not moving subjects. I'm just not a focus and recompose shooter anymore. Back button focus now for years. The shutter button(s) have no focus duties at all.

Talking Fuji (Xpro2)i, AF-C isn't as good/fast/accurate as Nikon and I use it less. For what you are shooting I imagine AF-S is fine but I'm curious what you use. Do you find the XH-1 better than the Xrpo?, compare to the XT-3? The 3 should be better than both but you choose not to use it.

Nice images above and I'm sure I couldn't ell one camera from another

Kirk Tuck, Photographer/Writer said...

Hi Neil, Thanks for asking. I can't stand using AF-C. Maybe it's because my early development as a photographer was based on using manual focus cameras with focusing aids right in the middle of the frame. Some times I capriciously engage all the focusing points at once but I still stay in S-AF.

I know a lot of people swear by back button focusing but I hated the idea of making one smooth function with one finger into a multipart task that required different controls and the need to constantly be aware that the camera might continue to focus without me. My favorite way of working is with a fast lens and manual focusing. Once I get something in focus I can shoot lots of variations without having to keep fingers on or off buttons.

Old dog. Not particularly open to new tricks if I don't perceive the need for them. But then again, I am hardly a sports photographer.

Neil Swanson said...

I can see your point as well. Back button focus seems natural to me. It can also be a one press, acquire focus, and shoot at will much the same as what you describe you do anyway. I just like in the case of the Nikons removing the shutter from all focus activities. The BB focus (labeled AF-ON) falls right under my thumb.

Following an artist with guitar as they move around a stage, a singer as they move onto and away from a mic at razor thin DOF's and Hi ISO's, a drummer as they fly around the kit or a grandchild doing most anything is what good AFC is for. It works. Hey as long as you get the shot right?

Zone focus, a practice I haven't used in ages just seems as if it can't possibly work..It does, I know it does.

But is your XT-3 better/faster than the XH-1/XPro-2 hardwire level?

James Moule said...

As always, a very useful and informative post. A very minor nit: You compared the Lumix to the Sony A7R3. If you compared it to the new Sony A7R IV, you might have different conclusions as far as the EVF and build are concerned.

I'm glad to read that I am not the only old dog that never learned to be comfortable with AF-C. and back button focusing.

Zack S said...

I really love your theater work. A while back I got inspired by you and contacted about 10 local theater groups and asked if I could shoot some of their dress rehearsals. Told them that I was an amateur shooter trying to learn some new skills. Also offered to give them any shots I got. Did not receive a reply from any of them. I might try again as there is a lot more theater activity in the cooler months. I think they would be a lot of fun to shoot but I probably will never find out.