Good morning Konical and Oren,
I found older the camera lens , and older the Engraving is better. I admire some of the nature engravings of Nordic engravers too much but it comes to Portraits , I cant say the same for Slania , I found his thickness grades of lines of portraits are very thick and it darkens the subject and gives a effect it coated with asphalt. Slania made too much engraving and I think he made them like a factory makes art. Its too much standartized and lack of invention. I saw Hornsby engravings and they were smooth like a silk and you can feel the air around the subject.
Lot thinner lines and gaveaway more elegant curves on the subject , Slania curves are more basic , faster , thicker and uninventiveness.
Look to the modern nordic design , they are faraway more basic than barn door and price tag for a plywood chair is 10000 dollars , hah !
I dont need to pay their workers Java holiday , university education as they dont to me.
Lets come to the main subject , After 10 years of research , I found that good lens is the most important thing and computer cant simulate it because the lens is the first viewer of the three dimensional subject. If you dont model your art at computer for several weeks , illuminate with raster and carry to 2d file or if you dont take stereo to multiple images and create a 3d file at computer , you dont have access to Leitz quality.
Its possible if you do want back pain, if you want free software , dealing with viruses , anti virus softwares. But it still possible and that is wonderful.
My real aim is to survive from analog digital camera , film , computer and carry my art maker with me. Its a flat glass piece and when you look through it , you see the composition as van gogh or rembrandt or gaugen drawing or a engraving.
I found few papers about flat printed lenses which makes optical effects. I am trying to understand the optical design math and physics and quantum chemistry and carry to computer power and than universal file
Some one will get a file copy , print on transparent medium , attach it to plexi and hey, all the classic art in your hands.
I need to learn , which optical design math helps to calculate , lens sees 3d and distorts the line filter as engraver.
Thats the plan.