T3D Re: Viewer ocular

[michaelk@xxxxxxxxxxxxxxxxxx (Michael Kersenbrock)]

> Are these lenses listed in Edmunds consumer catalog or their industrial
> catalog?

"Edmund Scientific Industrial Optics Division
 1998 Optics and Optical Instruments Catalog"

Really neato stuff for only half-a-ton of money!  :-)

> Bill Stickley
> 
> > 
> > My 1998 catalog does not list the lens you describe (and I threw the 1997
> > away when it came).  The largest one they list (on p. 27 in the 1998
> > catalog too) is # D30,229 -- 23.00mm diameter, 40.30mm effective FL,
> > $38.30.  On p.117 they list a very similar 7x magnifier (# D38,452) and say
> > it has a 33mm field of view, which is a fraction of a mm less than the 5P
> > unmounted diagonal.

I purchased the "next one up", the 10X Nr- D30,344 for my wife to use
at antique shows (looking at pins, etc) and is the one she lends me
from time to time to look at things.  Although it's superb for this
usage, it doesn't really seem like something appropriate for slides 
unless the 7X is dramatically different (I know the field is wider).

Mike K.


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