Thanks to everyone for the links--lots of great information there.
Tedd
---
t...@mchenry.ca
www.mchenry.ca
oops, thought you were the original poster, jim. sorry.
/aaron
If you are looking for fine polishing grit, locate the nearest shop which
sells supplies for grinding rocks and semiprecious stones.
JIm
Jeremy Siemens writes:
I've
heard of people using silver shim for their pinhole
material. Tarnished silver is black - and presubably
not very reflective.
Reminds me of that page at
http://www.p at ???/resources/makingholes.html
that talks about using selenium toner to darken the
Hi Philippe,
Painting the inside of your camera black (or using
black paper) will definitely reduce the amount of
scattered light in your camera. You could avoid
scattered light reflecting off the inside of your
pinhole by using a non-reflective material. I've
heard of people using silver shim
I have posted a picture from my travels this last weekend. I visited
Jack's River, which flows from East to West along the northern border
of the Cohutta Wilderness in North Georgia. This is a pretty scenic area,
with lots of photo opportunities.
Hello, made my first pinhole from aluminum pie tin, but I need to thin =
the material some more. Sanded with 600 wet/dry paper, but have a better =
idea: using fine grit and a marble, a concave surface could be =
formed... hopefully at it's thinnest near the pinhole. Anyone tried =
similar
Jeff,
You could probably find Aluminum oxide at a science store or if there is
one in your location, at a lapidary supplier. You could also use the rubbing
paste auto painters use to polish cars after they have been painted.
A better idea would probably be to thin the material by
thanks!
there have been pinhole cameras on every space flight due to
their unique ability to record high level energy events with
a very small aperture
jim
---BeginMessage---
jim, if i remember correctly, the first camera to take pictures of the
sun from outside the earth's atmosphere (i.e. in
Hello, made my first pinhole from aluminum pie tin, but I need to thin the
material some more. Sanded with 600 wet/dry paper, but have a better idea:
using fine grit and a marble, a concave surface could be formed... hopefully
at it's thinnest near the pinhole. Anyone tried similar method? I'm
- Original Message -
From: Thom Mitchell tjmi...@ix.netcom.com
Would then a thick material create a smaller circle with the same image
quality (or not) as a thinner material? These may be simple questions but I
want to be able to control the size of my image circle, either through
11 matches
Mail list logo
