Re: Slit manufacture

Eric -

I have tried something like that but had no success (perhaps I am just clumsy).

Also conjecture, a possibility may be to take a picture of a black line with TechPan film, then use the negative. This is something I have been meaning to try, as it would increase the possibilities of the slit. Just a thought.

Cheers -

george

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 --- On Thu 02/03, Eric S. Theise < mataro@cyberwerks.com > wrote:
From: Eric S. Theise [mailto: mataro@cyberwerks.com]
To: pinhole-discussion@spitbite.org
Date: Thu, 3 Feb 2005 09:01:34 -0800 (PST)
Subject: Re: [pinhole-discussion] Slit manufacture

Tom Hawkins writes:<br>> So I want to know if there is a good method to make nice small slits in shim<br>> stock. I've seen plenty of fine slit photographs so there must be many<br>> folks on the list who can make them. I tried a quick search of the archive<br>> and the web but didn't find anything would be most grateful if anybody has a<br>> good method to let me know. Should I use a scalpel or something?<br><br>I have not done this, so it is purely conjecture, but if I were to<br>do it, I would probably try sliding two pieces of shim together in<br>the same plane, with some kind of thumbscrew or other mechanism for<br>tightening them into place, until I'd done tests to see what the<br>right slit aperture should be. I'd use pieces of shim at right<br>angles to the slit to keep the slit evenly spaced while I was setting<br>it up. In other words, I'd bring the two pieces together against<br>the thickness of the third, tighten the two into place, and slide<br>the third out, leaving the slit.<br><br>But I
tend to overengineer.<br><br>I will be curious to hear what others do, and what size aperture<br>people tend to work with. The timing is good; I was just looking at<br>some images made this way.<br><br>--Eric<br>_______________________________________________<br>Post to the list as PLAIN TEXT only - no HTML<br>pinhole-discussion mailing list<br>pinhole-discussion_at_spitbite.org<br>FAQ at http://spitbite.org/pinhole-discussion/list.html<br>

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Received on Thu Feb 3 15:13:43 2005