Archives for 2013

I performed a test of the D800E and the Nikon 400mm f/2.8 lens with the oscillocope time base set to 1/2 second per division. Here is the result magnified by a factor of 6 in the vertical dimension: Same second-order underdamped vibration. The time constant seems to be even longer than two seconds, more like… [Read More]

This is getting a little far afield from my original reason for doing the testing, but yesterday’s mirror slap results got me interested in two things: Did the D4 work the same way as the D800E? How long did it take the mirror slap vibration to decay? I put the D4 on the 400mm f/2.8… [Read More]

Since I had the 400 set up, I ran the previous tests using the D800E instead of the Leica M240. Horizontal camera orientation, shutter tripped remotely, no shutter delay: Horizontal camera orientation, shutter tripped remotely, 3 second shutter delay: Vertical camera orientation, shutter tripped remotely, no shutter delay: Vertical camera orientation, shutter tripped remotely, 3… [Read More]

I set out to see if I could see the effect of the two shutter movements — one to close it and one to open it again — that happen with the Leica M240 in live view mode. I put a Novoflex M-to-F adapter on the M240. It’s a nice little piece, with a ring… [Read More]

I went back and did the testing of the previous post using the self-timer (set to 2 seconds) to release the shutter. The results are cleaner because there’s no hand-induced vibration, but say the same thing: leaving live view on with the M240 won’t hurt your sharpness with the tripod and ball I used and… [Read More]