Time to be with your loved ones

Time to be with loved ones

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22
votes
2answers
3k views

What is a zone plate?

I was looking into alternative methods of photography and I happened upon something called a 'zone plate.' Three questions: What is a zone plate? How does it work? What can I do with it?
14
votes
6answers
964 views

Is there an easy way to force chromatic aberration?

A couple of months ago I was playing with my camera and a magnifying glass and I noticed that this glass produced a very soft chromatic aberration. Here's an example: (Here is the full size, 18mp ...