Carefully following John's procedures, I scribed grids on a 2-13
screen. Though I've got nervous with the work, I succeeded. Thanks
John!
BTW, I had a little trouble with making the template, so I used
Corel Draw to draw a 36 x 26 mm box with 6 mm grids. I think this is
finer than the 1-10 screen, guessing from the drawing?
First I practiced with a junk screen, and then bought a new 2-13
screen, and scribed lines on a used 2-13 screen. I don't want to do
it again ...
kazuya matsumoto
> I used to do this when I was killing time at my desk between repairs at
> Olympus.
> Draw a box the same size as your focus screen. Draw your grid on the paper.
> Carefully lay your screen over the drawing. Tape atleast two corners of the
> screen to keep it from moving. For obvious reasons, allow only the tiniest
> amount of tape to touch the screen.
> Carefully lay a straight edge over the screen in-line with the lines you
> drew on the paper, which you can now see through the screen.
> Carefully drag the tip of a NEW single edge razor blade over the screen,
> tracing your first line. Repeat 3 more times.
> I showed these to Pasquale Ferazzoli (who ran the Tech. Representative
> department at the time) and he was quite impressed.
> You can end up with very fine lines as are found on the 1-10 screen, much
> finer than the Beattie lines.
>
> John Hermanson
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