Archived posting to the Leica Users Group, 2000/02/28
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Mike Johnston <michaeljohnston@ameritech.net> wrote;
>Similarly, if the sharpest aerial grain image DIFFERS from "the sharpest
>grain in the print," you've got a problem in your technique somewhere.
>Or you're not focusing using white light, which you always should do.
And Ed wrote
>Ctein has written about this "focus shift" problem with certain VC papers in
>C&D and PhotoTechniques and it sure surprises a lot of folks when they check
>their own set-up. His findings make a mockery of the old stand-by of placing
>a sheet of paper under the focus finder to help focus correctly.
I remember Gene Nocon saying (in a talk he gave years ago) that you should
focus with the intended filtration in (if using VC papers) - red shift at 1
metre??. Why would you focus with white light and not put a piece of paper
under the focus finder? I am confused by both of the above - please expand!
Also, what do you think the best lo-tech way is to align an enlarger, or do
I have to buy a laser guided gizmo? I have tried to align my De Vere 504
with nothing but spirit levels, spanner/wrench and a Camembert at room
temperature, but have never trusted the result - corners can be dodgy on
35mm but not so much with other formats. Mike, you might be spot on in my
case about the neg carrier (even though it is glass).
All the best
Alex
____________________________________________
alex@zetetic.co.uk
http://www.users.globalnet.co.uk/~abrattell/
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