Re: ATM Copier Lenses and mirrors

[Walter Banks <walter@bytecraft.com>]

Phillip Smith wrote:
> 
> You have been unlucky, older
> Photocopier's and Fax machines have a small lenses in them, 
> they range from 15mm to 80mm in size, the most common size 
> is 50mm in photocopiers (please note:- it is very rare to 
> find a copier lens bigger than 50mm). 

Over the last couple years there have been some old very 
large photocopiers used in engineering shops to copy 
big drawings de-commissioned. I have picked up lenses 
from two different types in surplus shops. One of these 
has a 450mm  F4 lense. It is very nicely color corrected and
I mounted it in a 6 inch aluminum thick wall tube and 
it has made a nice wide field scope.

The second is a lot more interesting. The basic lense is about 
100 mm in diameter with about 680 mm focal length. It has in 
front of this a plano-concave whose position is adjustable. The
P-C lense is about 7 inches in diameter (Yup a 7 inch barlow)

Walter Banks