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by Mustafa Umut Sarac Published on 07-29-2015 05:35 PM
Miroslav Tichy was telling that he was making a lens from plexiglass , carving with a knife. He tells plexiglass is soft and easy to carve . Than he.....
by Mustafa Umut Sarac Published on 07-27-2015 10:53 AM
Max Berek 1922 Lens design attached with all strange numbers.

Peter Karbe , Leica Chief Designer gave a interview about apo summicron.
He was...
by Mustafa Umut Sarac Published on 07-18-2015 10:20 AM
The Collotype Printing Process: A Proposal for Its Revival
Author(s): Kent Kirby Source: Leonardo, Vol. 9, No. 3 (Summer, 1976), pp. 183-186...
by Mustafa Umut Sarac Published on 07-18-2015 07:45 AM
ps : that work like negative photographic paper

Aachen Kids University Workshop Video and Recipe for to able to make your negative photographic...
by dpn Published on 07-11-2015 11:59 PM
Featured in the Spring 1961 article of the US edition of Leica Photography was the Clark family. Father Joe Clark, mother Bernice Clark, and son...
by Mustafa Umut Sarac Published on 06-28-2015 03:54 PM
Our friend from Belgium, Philippe Berger asked that he has a British Carbon Print from 1870s and he wants to know the list of used papers for that...
by Mustafa Umut Sarac Published on 05-18-2015 02:49 PM
When one element replaces another element in a compound, a single replacement (also known as displacement) reaction has taken place.

The general...
by Mustafa Umut Sarac Published on 05-18-2015 01:06 PM
I am thinking loud and opening a question to common wisdom. I think we can learn from pixel interpolation. An software looks to two neighbor pixels...
by Mustafa Umut Sarac Published on 05-03-2015 02:34 AM
Hello there,

I found ruby bohemian ambrotype backing glasses have a very long history and that tint even used at text editors as a text font color....
by Mustafa Umut Sarac Published on 05-02-2015 07:09 PM
Optical Brightening Agents in Photographic Paper

Author(s): Paul Messier, Valerie Baas, Diane Tafilowski and Lauren Varga

Source: Journal of...
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