RE: Slit manufacture

Great info & link. Thanks Tom! Now - does anyone know of a site that
shows plans for 120 rollfilm cameras?
Kate M.

-----Original Message-----
From: owner-pinhole-discussion@spitbite.org
[mailto:owner-pinhole-discussion@spitbite.org] On Behalf Of Tom Miller
Sent: Friday, 4 February 2005 6:40 a.m.
To: pinhole-discussion@spitbite.org
Subject: RE: [pinhole-discussion] Slit manufacture

> -----Original Message-----
> From: Tom Hawkins
> Sent: Thursday, February 03, 2005 10:14 AM
> Subject: Slit manufacture
>
> Hi there folks,

(clip...)

> So I want to know if there is a good method to make nice small slits
> in shim stock. I've seen plenty of fine slit photographs so there
> must be many
> folks on the list who can make them. I tried a quick
> search of the archive
> and the web but didn't find anything would be most grateful
> if anybody has a
> good method to let me know. Should I use a scalpel or something?

Can't help you slit-in-shim-stock specifically, as I've never tried it,
but there are excellent alternatives.

I've made many slits using the method that the late Marnie Cardozo
developed. It works great. Marnie's method is described on page 224 of
the third edition of Eric Renner's book "Pinhole Photography,
Rediscovering a Historic Technique." It is on page 163 in the second
edition. The method is also described in the "Pinhole Journal" volume
15 number 1. The method uses lith film (available from Freestyle) as
the slit material. When developed in full strength Dektol it is, for
all practical purposes, opaque. You can cut it with a scissors and trim
it with an Xacto knife. The nifty thing is how easy it is to make slits
of various shapes.

In the same issue of Pinhole Journal, there is an article by Jim
Moninger about slits. Here is a quote: "I began by using the classic
pinhole material: brass shim, but found that it's far more practical to
use black, opaque construction paper."

Here is a link to Chris Patton's web site, which describes another
method involving a tool like Photogshop and outputting to
transparancies. http://www.stanford.edu/~cpatton/pinhole.html

Enjoy!

Tom Miller
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