I’m close to being done with the a7S review. In this post, I’ll depart from my usual objective reporting and give you an impression of what operating the camera was like. When I first got the camera, I thought of it as sort of like a Nikon D3 or D3s, both of which I loved… [Read More]
Archives for 2014
The Sony a7S AA filter
The a7R has no anti-aliasing (AA) filter. The a7 has one that’s pretty weak, and mostly operates in one direction. With its big fat pixels, the a7S would seem to be prone to aliasing. What did Sony do about that when they designed the camera? I set out to learn. I put the sharpest lens… [Read More]
How fast is the Sony a7S silent shutter?
The a7S has a silent shutter mode. When running silent, the mechanical shutter is on vacation, lying back and catching Z’s while the sensor does all the work. The mechanical shutter is a rabbit, completing an exposure in 1/250 second (for shutter speeds faster than that, a slit moves across the sensor, but it takes… [Read More]
Rangefinder lenses on the Sony a7S — summary
I’m about to move on from my testing to see how well various rangefinder — in my case, Leica M-mount — lenses do on the Sony a7S. Here’s what I’ve found out so far. Leica 16-18-21mm f/4 Tri Elmar ASPH — works fine at 16mm; also at 21mm. Leica 18mm f/3.4 Super-Elmar ASPH — works fine… [Read More]
Leica 18mm Super-Elmar on Sony a7S
Next up in my search for rangefinder wide angle lenses that work well on the Sony a7S: the Leica 18mm f/3.4 Super-Elmar-M ASPH. I also tested the Zeiss 21mm f/2.8 Distagon ZF.2, an F-mount lens with a retrofocus design that shouldn’t have any angle-of-incidence problems. I don’t have an F-mount 18mm prime, or I would have… [Read More]
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