PanoTools NG:
Re: Canon 5D MKII
Christian Bloch 2012-Mar-18 21:22:37
Well, it appears the upper and lower shutter curtains do
A) not move at the perfectly synchronized speed, so the gap between them gets thinner as it travels across, or
B) they are in sync, but accelerate slightly during their move.
Here's another one of these cool slo-mo movies, this time with a Nikon and some music:
http://www.youtube.com/watch?v=fG5QedhroYQ
Notice how thin the gap is at 1/4000s exposure time setting, and how wobbly these curtain blades seem. And it actually appears in this video as if they start out slow and then accelerate?.
Blochi
On Mar 18, 2012, at 7:54 AM, pedro_silva58 wrote:
> still, i don't understand how a vertical-travel focal plane shutter, like the one in the d7000, would produce this left-to-rite unevenness along the full long side. perhaps you would be kind enough to explain?