----- Original Message ----- 
>From: "Kotsinadelis, Peter (Peter)" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Wednesday, March 24, 2004 12:29 AM
>Subject: Anyone ever made lines on a EOS screen?
>

>ANyone want to answer the original post?

Hi Peter,

I wondered how long you'd stay on the list with all the unwanted(?) and
unwarranted advice about paper size economics etc!
I've put markings on a microscope slide cover slip (clear glass, 0.17mm thick,
19mm diam.).   I used a diamond tipped marker (designed for the postcode marking
of valuables), and using very light pressure against a straight edge I got my
lines. I pressed too hard on the first sample, and it cracked, but no. 2 is OK
and is in use.  Your focus screen is plastic so you should be able to use a
sharp steel point instead of a diamond.  Biggest problem is getting the lines
straight so that when seen in your viewfinder, they still look reasonable. (My
usage was adding a reticle to a telescope eyepiece - and getting it gently
illuminated with a dim LED is still proving a problem.)
How will you know that you've put the focus screen back in the correct register
?  I'm thinking about your scribed lines raising the plastic ever so slightly
around the lines, and disturbing the register.  Does the screen have metal
edges?

Malcolm
Milton Keynes, UK
www.megalith.freeserve.co.uk/oddimage.htm
http://myweb.tiscali.co.uk/ms1938/

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