Comment by hahamrfunnyguy

I built a trinocular microscope mount for my DSLR camera out of a couple of small magnifying lenses. When I was trying to get it to work and improve the quality, I did a bunch of reading on optics. Building your own camera lens that works is pretty easy, but making it capture nice pictures is hard.

Having this article back then would have been a big help! The interactive widgets are great, and it looks like they're entirely home-grown. I am really impressed with the level of detail and work that went into this post.