Archived posting to the Leica Users Group, 2001/04/09

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Subject: Re: [Leica] our obligation to pinholeday.org
From: "Stanislaw B.A. Stawowy" <watteau@krakow.neurosoft.net>
Date: Mon, 9 Apr 2001 17:00:58 +0200
References: <20010409135957.VHMG1288.femail2.sdc1.sfba.home.com@[65.1.114.25]>

BTW, something you all pinholers may find useful:

Optimal Pinhole Diameter:

1. Pinhole in SM body cap (f.l. 28.8mm): 0.20-0.25mm

2. Normal Pinhole (take RS Elmar, crush glass
   and take out, put pinhole sheet inside): 0.25-0.33mm

3. Tele Pinhole (unscrew 90mm SM Elmar lens head, 
   put pinhole inside, shoot): 0.30-0.45mm

Examples (2 photos made yesterday with too big (0.50mm)
pinhole in Leica ScrewMount body cap (actually a shortest
extension ring)):

http://www.neurosoft.net/images/p1.jpg

http://www.neurosoft.net/images/p2.jpg

Pinhole details: made from steel sheet, with sewing machine
needle and too big hammer; after one, VERY DELICATE punch,
needle went through sheet making *way too big* pinhole. 
What I'd to do? Took it and tried..


- -----                                
                                St.
                     (Stanislaw B.A. Stawowy)
              http://www.geocities.com/Stanislaw_Stawowy
            Echelon/Carnivore lines: Bob Black, Hakim Bey, 
           Ralph Klein, Sabotage in the American Workplace

In reply to: Message from henry <henry@henryambrose.com> (Re: [Leica] our obligation to pinholeday.org)