Lecture 15: Cameras & Lenses (94)
RishSharma7

Is it possible that we can utilize these formulas in our final projects? I'm thinking that if we want to do a 3D rendering, we can use the depth of field formula(s) to create a depth-based blur filter, like we see in movies. Am I mistaken?

jayc809

How is it that our eyes don't seem to have any depth of field issues? I feel like everything I see is at relatively the same clarity even if their distance from me is different (bar the things that I simply can't see). I thought our eyes are basically two lenses, which would make sense if there would be a depth of field. Or perhaps there is a depth of field in human vision, it's just that we unconsciously only see the things we are focusing on and kinda ignore the rest, so that everything we "see" is always in focus? Maybe that's why near-sighted or far-sighted people can't see very well? Very interesting to think about...

buggy213

its actually pretty neat, we have muscles in our eyes which can dynamically warp the shape of the lens in order to change the optical characteristics of our eyes in order to bring near and far objects into focus.

j-nn

I wonder how depth of field works when it comes to 3D or VR headsets, and the circle of confusion seems to be important when it comes to blur factor.

razvanturcu

Interesting how modern cameras do auto-focus computations instantly. Every time I see a professional photographer, however, they decide to do manual focus. I wonder why? Also, it makes sense now why modern cameras have CPUs/GPUs incorporated to do this calculations fast/in parallel.

brianqch

This and the previous slide helps it makes sense for why a large aperture or smaller F stop means that light rays converge closer which results in a more shallow depth of field. Also why smaller aperture means that light rays diverge, resulting in a deeper depth of field.

You must be enrolled in the course to comment