Posted a while back but to no avail. I've since done some tinkering but need a little bit of help perfecting the math.
I've constructed an experimental version of the above set up with success. Moving the plano-concave element away from the plano convex element brings the focal point towards...
Thank you for all of the replies! I've been able to narrow down what it is I'm trying to do. As I understand it, focusing both the lens on the camera and the anamorphic to infinity, this produces an afocal block. Mounting a variable diopter in the front allows one to tame the focus back from...
It seems with some intense research, I need two elements that when close together are afocal and when spaced have a power of .6 or .5 diopter. Any ideas?
I guess to clarify, what optics arrangement could be placed in front of the anamorphic lens, which is placed in front of the standard prime that is attached to the camera, to focus both from infinity down to about 1 to 2m and back out to infinity?
Close. I have the anamorphic attachment, a lens that focuses from 1m to infinity. Also attached is a prime photography lens (spherical) directly to the body. In the example I saw online, both lenses were focused to infinity and another set of optics were placed in front to focus both lenses with...
New to the forum but stumbled upon this and thought it might be beneficial to query more scientifically minded individuals. I am a filmmaker and use a variety of lenses to acquire certain looks. One of which is anamorphic cinematography. (http://www.red.com/learn/red-101/anamorphic-lenses)...