Becky -
This is correct. You will want to match your pinhole size to the focal length
of your camera. I find it easiest to make 10-12 at the same time. I do this
because it is extremely difficult to get the exact size you are looking for.
By making a bunch of them, when you make your camera, you will probably have a
pinhole that is sized nicely for your camera.
Cheers -
george
-
http://www.GLSmyth.com
http://DRiPInvesting.org
--- On Mon 06/09, Becky Ramotowski < becks...@cotse.net > wrote:
From: Becky Ramotowski [mailto: becks...@cotse.net]
To: pinhole-discussion@p at ???
List-Post: pinhole-discussion@pinhole.com
Date: Mon, 09 Jun 2003 14:25:09 -0500
Subject: Re: [pinhole-discussion] Sized needles
Hi,I'm new to the list here, and am wanting to build my first pinhole
camera! I'm considering my first try at it by re doing a camera that i
already have to get the feel of it. ( I do like the ideas here of making
them out of various cardboard containers, and will try that after I get
comfortable with the overall technique)My question is in regards to the
post below here.If I drill my own pinhole and want the smallest
possible hole with the number 15 needle, do I understand correctly to just
get the point through, then sand the rough edge and that's the end of it?
If the needle goes farther, then the shaft makes a much larger
opening?Thanks in advance!Chrome Dome wrote:> > As
mentioned earlier most stores with fabric departments sell quilting needles.
They come on a card with a plastic 2.5" diameter dial type dispenser that has
compartments containing needle sizes 4-12 but for some reason excludes #11.
> > Hobby/craft stores sell the above packs too, but for even smaller
needles you need to look in the craft section for beading needles. Hobby Lobby
(another national chain - closed on Sundays) sell Beadsmith cards of 4 needles.
One card contains sizes 10-13. Their smallest needle is size 15 which measures
.0085" at the point. The shaft is .0095". At our store and I guess nationally
these needles are not with the "seed beads" but in the next isle with the
beading accessories as thread and wire.> > I use a jewelers
(machinests) pin vise to drill with needles and the small drills that Guillermo
discussed. My pin vise is appx 4" long and slightly larger than the diameter of
a pencil. At either end is a one inch long threaded collett which tightens or
loosens the oriface. The range of the smaller end is appx 1/16" to zero. The
larger end 1/16" to 1/8".> > Warning these needles and drills are
extremely fragile!!! Chuch them up so that only 1mm appx is exposed! Twist the
pin vise with your thumb and index finger to drill. I place the metal on top of
a white art eraser as a backing to drill into.> > Mike Atwell>
> > >
> Get advanced
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