Tag Archives: olympus

RIP ISO?

Digital cameras have become ubiquitous, to the point where it is almost impossible to be somewhere out of reach of someone’s camera. It has reached the point where Panasonic has announced a cellular phone with a 1″ sensor camera (actually, a camera with a GSM chipset), replete with Zeiss optics. Whether that appeals to you or not it is a sign of the widespread commodification of technology that was only available in specialized camera gear just a few years ago.

With that backdrop it has become truly rare to see an advance that changes your mind about where the technology will be in two years from now. For me, that happened when I watched this video:

Nice video, yes. But it was shot on a Sony A7s mirrorless camera, with a full moon as its only light source. Yes, f/1.4 optics and dizzying ISO numbers are employed. The author states that the bulk of the video, apart from the opening two scenes were shot at 1/30th, f/1.4, ISO 12,800 (I’m assuming that 1/30th is based on 30fps video). That is “bonkers” as we say in my neck of the woods.

Sony release their own video showing a dawn campfire scene, with similar dropping of jaws:

“Bonkers” aside, it points to a benchmark for the next generation of sensors that will be in cameras like my Oly E-M10, and not just in a $2500 USD Sony body. Not that $2500 is astronomical money. You would spend much more on the pro offerings from Nikon or Canon, and the good folks at Leica will gladly take 8,000 Tricky Dick Fun Bucks in exchange for a bare M8 body. None of those cameras will do what the A7s does in this video. The implications of this kind of high-ISO performance: Setting Auto ISO with an upper limit of 12,800 and actually using it, not paying a brutal price in terms of noise and digital “grain”, and not needing a shutter speed that would make Edward Weston weak in the knees… That is where this video points.

And as nerdly as that idea is, it has real implications for those of us who shoot primarily in available light. I might shoot with flash once a year. Maybe not even once a year. So rarely, in fact, that I started practicing with a flash for no reason other than I didn’t want to completely forget how to use one. It has implications for me personally as I shake down my E-M10 and compare images to both the geyser of images on the internet taken with similar mirrorless systems, and my archive of images taken with my Nikon D300.

Every camera system is a web of trade-offs. Your parameters are physical size, resolution, focus speed, max shutter speed, low light performance and other dynamic range considerations, firmware/processing/raw specs, and overall ergonomics. I’m sure there are more but those are the big ones that come to mind. Accessory issues like lens selection, flash system, compatibility with legacy lenses… those also play a part. But if you shoot in low light and want to be able to use normal shutter speeds without suffering with noisy images, then you really care about dynamic range and noise, and as long as you get a few good lenses you can call it a day.

So there it is. Sony, the company known for horrible user interfaces, worse software, and even worse tech choices (minidisc, beta-max…) kicks sand in the face of the cool kids over at Nikon, Canon, and Leica. Sure, those guys all use some of Sony’s sensors. But they don’t have this kind of performance. I give them  a huge amount of credit, maybe enough to put their camera on my wish list (I still have PTSD from some earlier Sony purchases).

How big is Micro-Four-Thirds?

I began to share my experiences with my Olympus OM-D E-M10 in two previous posts. The transitions from my Nikon APS-C gear has been a mixed bag. Technically it has been fairly easy. Artistically it has been more challenging.

My expectation was that the steepest part of the learning curve would be adapting my Nikon routine to a new system. And sure, the Olympus menu system is different, and in some ways more complicated/arcane. That turned out to be  a one time thing. How often do you really rework your everyday settings? For me, not often. I now know the Olympus menus well enough to get what I need most of the time. I have been thrown off a few times but once you remember that all the time/bulb/comp modes are in the manual shutter settings it solves most of those problems too.

The real joyride has been artistic, with a side of camera capability. The photos from the Olympus have a different look. The exposure curve is different. It does not demand a maniacal devotion to underexposure the way the Nikon does. I don’t think I ever intentionally used a positive exposure compensation on the Nikon. That would be suicide in anything other than deep overcast conditions. You would be asking for a world of blown highlights.

Conversely the Olympus seems to have broader latitude, and a more accurate matrix metering system. There is a caveat: areas of high tone seem to block up without being clipped. If I am shooting an area of white, like clouds or sea foam, the image will lose detail in that bright zone.

the SABINO, Mystic, Connecticut

Here is a photo of the steamboat Sabino. The image is not overexposed, but the chine of the hull is lacking detail. It doesn’t look awful, but it does lack depth. This would not have happened with my D300.

On the other hand, I took a few images at an indoor farm market, under mixed lighting, where I was not expecting much and the result is:

Wild Mushrooms, Matane Public Market

Beautifully saturated colors and crisp detail, without having to resort to much in the way of post-processing. That is the kind of image that has kept my D300 in the bag.

The difference between my two systems reminds me of the differences between color print films, or color transparency films. You liked Kodak, or Fuji. You probably did not like both. With DSLR you probably fall in with Nikon or Canon. I think of Nikon as Kodak and Canon as Fuji. You get more pop and saturation out of the Canon. You get a warmer, natural image out of the Nikon. If that is the case, then the Olympus is leaning more toward Canon. The images out of the camera look amazing. Sure, the M43 systems give up some resolution, and the images seem a little noisier. But the combination of the glass, sensor and firmware combines to generate some extremely pleasing images.

Speaking of glass, I sprung for a Panasonic 20mm f/1.7 pancake lens and it is very nice. Sure, the automatic focus can be glacial, and the manual focus control feels like a greasy zoom control. However, the images are very good, very flat (in terms of distortion) and the focus speed only becomes an issue in low light. In combination with the OM-D it is a lot like shooting with my old Oly 35SP rangefinder: light, fast, crisp, and easy. What it leaves me wanting is a real old-school manual focus control, and having the aperture on the lens barrel would be cool too. At least I know what I want out of my next fast prime.