- Original Message -
From: "Meggan Gould"
> Hello! I would like to tap into all the zone plate knowledge out
> there...I have done a fair amount of pinholing, and have read up on
> zone plates and feel more or less comfortable with how to make the
> actual zone plate. What is the best w
Hello! I would like to tap into all the zone plate knowledge out
there...I have done a fair amount of pinholing, and have read up on
zone plates and feel more or less comfortable with how to make the
actual zone plate. What is the best way to then mount the zone plate
though? Has anyone done H
- Original Message -
From: "Richard M. Koolish"
> I'm not sure I would describe the workings of a zone plate this way.
It
> doesn't matter where in the zone plate (or pinhole) the light passes
> through. It doesn't bend at one place and not in another. The way
you
> thin
> Kate, I don't think I mentioned distortion in my post. A faster ZP has
> more clear rings, but that causes no distortion, the ZP camera still is free
> of linear distortion (at least). The increased number of clear rings
> increase the
> ratio noise/signal, tho. Noise is the light that reach
- Original Message -
From: "Kate Hudec"
> I was interested in Guillermo's recent post about the relationship
> between number of rings and zone plate image sharpness. I have a
> converted Lubitel with 75mm focal length. If I wanted a camera with
> MORE distortion (which I understand fr
I was interested in Guillermo's recent post about the relationship
between number of rings and zone plate image sharpness. I have a
converted Lubitel with 75mm focal length. If I wanted a camera with
MORE distortion (which I understand from Guillermo's post would also be
a faster camera), would I
