[LargeFormat] Enlargers and Glass Neg Holders
Lee Carmichael
largeformat@f32.net
Thu Dec 7 19:06:23 2000
Clive,
One other thing I think is important is not to really smash the
two glasses and the negative together. That Elwood pressed them together
but did not really press them down hard. I am struggling to find the words
here but the idea is Newton Rings can be avoided.
At 11:47 PM 12/7/00 +0000, you wrote:
>At 4:57 pm -0600 7/12/00, Lee Carmichael wrote:
>>Clive,
>> For several years I printed with a 5x7 Elwood it had a diffusion
>> light source and a glass carrier. I never had Newton Rings. I did have
>> a lot of dust, but I learned how to deal with it. Clean with soap and
>> water and dry them very dry before you put the neg in place. I suspect
>> that some of the reason I had little or no spotting was because of the
>> diffused light source. Condensers exaggerate the problem, IMO. I now
>> have a D-2 with the VCL 4500 coldlight that Aristo makes and still not
>> much dust. YMMV.
>
>Well that goes to show that it can be done :-) One of the 138S enlargers
>here has a Chromega E Dichroic head so guess I will be using that one with
>the 5x7 glass carriers. Hopefully the diffused light source will have the
>same effect for me - condenser enlargers definitely make the problem worse
>even without glass.....
>
>I may try to use isopropanol alcohol to degrease and clean the glass
>followed by a micro-fibre cloth wipe.
>
>One of the glass sheets (the top one) is anti-Newton glass. I have had
>Newton rings before with another very old enlarger - which also put me off
>glass carriers....
>
>--
>All the best,
>
> Clive Warren http://www.f32.net
> Large Format travel and stock photography
>
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As usual,
Lee Carmichael
check out: http://www.f32.net/Services/Photographers/LeeCarmichael.html