bjhurley Offline Upload & Sell: Off
|
Desmolicious wrote:
But that does not make me feel good about trusting the aperture markings. It’s not a big deal if your camera has a ttl meter, but if it is an unmetered camera like an M-A, M4 etc having accurate aperture markings is key for correct exposure.
They should be pretty accurate. I tested this on my 28/2 Apoqualia at one point by putting my camera on a tripod, setting the aperture to one of the markings (since it's unclicked this is an approximate exercise anyway) and then switching out to another lens set to the same aperture, and (with the camera set to aperture priority and same ISO) the shutter speed was the same. I didn't check throughout the range but spot-checked a few and they matched. (I did this test when I was toying with the idea of using my Sony A7s as a light meter for my film camera, since it has built-in multi-metering and spot metering, and I could check exposure with it the same way you'd shoot a Polaroid on a view camera. The Apoqualia is my smallest lens, so I figured I'd use it with the Sony for the smallest form factor).
But anyway, unless you're shooting slide film, spot-on accuracy of aperture markings might not be so important. I'd worry more about the focus shift. It seems pretty clear the 28/1.7 was designed to be used on modern digital M-mount cameras with live view (since it focuses closer than rangefinder limits, and focus shift won't be an issue with live view).
Edited on Jun 30, 2023 at 06:51 AM · View previous versions
|