[owenversteeg]

Impressive! I tried to make a comment that explained how to do it - how accurate is it? https://news.ycombinator.com/item?id=7538035 I'm going to try and make one myself.

My main questions are:

1) how far from the RAM should I put the lens?

and 2) is the lens I mentioned in my comment going to be an adequate lens?

[ernok]

We disassembled a "door spy" (door peephole?) and used the lens - if memory serves me correct..

Keep in mind that the resolution was only 64x256 pixel (we used one of four physical separate 64x256 bit arrays on the chip) so the lens quality did not really matter.