[pure-silver] Re: AN Glass Effect on Sharpness

Rob,
With all due respect for what you have used, what you now use... and what you observe with your set up. While I may now be retired... with some 30 years experience in technical/scientific/biological imaging in research... I still use my 30 year-old Durst 1000... and I have yet to experience any obvious.... or deleterious effect of my 
AN "rough surface filter" over that period of time.
I have to imagine that Durst would not have included AN glass if the effect of including such materials in their accessories was so obvious that it would 'soften' the image on the 
print.
Perhaps you have had experience using the readily available anti- glare glass that is 'recommended' by chain-store photography units. As you state, not all anti-Newton glass is equal, but do not judge my set up, the sharpness (or lack thereof) that are the result 
of using my equipment.
You are welcome to come and visit my darkroom.. bringing your 'sharpest' 4x5 or 120 B/W negative you have and try for yourself... or would you rather stand at a distance and 
throw "stones".

Ken Sinclair RBP, FBPA

On 31-May-09, at 4:41 PM, RobC wrote:
Not all AN glass is equal. The Durst An glass for my L1200 actually throws a pattern from the glass onto the print if I look very carefully. And that is when it is above the neg. For sure it would reduce the quality of the print by making it unsharp. You can call it glass but if it's under the lens then it is a lens. I bet you wouldn't put a rough surface filter on your taking lens would you. At least unless you wanted soft focus. Mind you, the effect may be pleasing on some prints. Suggest you try it and see for yourself. 

RobC
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