Re: Center Filter

[M Tyler <mtyler@xxxxxxxxxx>]

Felix,
 In theory it should work fine. 
 Take an evenly illuminated (white) wall and then create a
negative (well, acutally a negative of a negative = a
positive) of it to create the proper printing mask. 
 Getting the proper denisty will take some work. In the
enlarger you may wish to try to place it on the illumination
side of the negative and slightly out of focus.
Let us know how you do,
Marshall


Felix Collins wrote:
> 
> I was just wondering about center weighted filters, could you possibly
> expose some b&w film through the lens you need to correct and process it to
> the right density?  I guess the size would be wrong but you might be able
> to fix that some how by using other optics.  Anyone done this?
> 
> Felix

-- 
 /---------------------------------------------
 | Marshall E. Tyler, CRA, FOPS
 | Wake Forest Univ. Eye Center
 |  http://www.wfubmc.edu/eye
 | Ophthalmic Photography, 1997, Saine & Tyler
 |  http://www.wfubmc.edu/eye/book
 \---------------------------------------------