Tagged Questions
5
votes
2answers
3k views
Is the difference between a good 50mm vs 85mm lens just your distance from the subject?
I was wondering: is the difference between a 50mm f/1.8 lens and a 85mm f/1.8 lens just your distance from the subject? Let's assume that distortion is minimal; both lenses are of high quality. Does ...
7
votes
2answers
1k views
How can a prime lens focus on more than one plane?
By definition, a prime lens is a fixed lens system with a fixed focal length.
Then, simple physics tells us that it should be able to focus only on one plane (at a fixed distance) in front of it. But ...
