Note that we strongly recommend using a manual aperture lens (such as a Nikon lens) with a Canon body. With a digital lens, the aperture will close down to slightly different positions for each shot. This is not a problem for still photography, but for stop motion or time-lapse it creates “flicker”. For Canon cameras, use a Nikon manual aperture lens with a Nikon to Canon lens adapter.

For Nikon cameras, use a Nikon manual aperture lens and put masking tape over the lens’ electrical contacts.

A manual aperture lens has a physical ring for controlling aperture. Do not get a ‘G’ series lens, which has no aperture ring.

Here is a blog post from Adobe that describes the issue.