willie_901
Veteran
My question is: Why should I go through all this software fiddling when I can get the look I want straight from the film?
The answer is:
Unless you are B&W using transparency film, analog film post-production work is not simple, quick or inexpensive. The "software fiddling" takes significantly less time than experimenting and documenting film development methods, dodging and burning prints and other refinements used to optimize an analog, wet chemistry negative film work flow. Making excellent prints requires "fiddling" for both analog and digital media..
Very large analog prints made with large format film can be an exception.
With digital imaging the pixel count along the widest frame dimension limits maximum print size. For high-quality prints 300 pixels per inch is generally considered the lower limit. Lower PPI affects perceived print quality. Some people extend the limit to 240 ppm.
An uncropped image from a 21 MP, 2:3 aspect-ratio sensor translates to 5616 x 3744 pixels. Then 8 X 10, 11 X 14, 13 X 19, and 24 X 36 prints have 467 PPI, 340 PPI, 295 PPI and 156 PPI respectively. So with a 21 MP sensor, for many subjects the largest practical print size is 13 X 19. People will respond citing really great results with large prints at lower PPI values. I never encountered an art/marketing director who would pay for an image that was less than 300 PPI
However, at longer viewing distances lower PPI values are more acceptable.
Some digital images can be upsized using specialized software. The success of this approach depends greatly on the subject content and the original, rendered-image artifact levels.
With 4 X 5 B&W film a 24 X 30 print could be excellent assuming one had the enlarger. The Omega/LPL LPL 670CXL 6x7 Triple Condenser Enlarger costs about $2,400. Then there's the lens. For half that price you can get a Beseler 67XLC Condenser Enlarger (no lens) and use a 50mm lens to project a 16 X 20 image from a 35 mm negative. But to get up to 20 X 24 you'd have to spend $5,900 (no lens) on the Omega LPL 4550XLG 4x5 Variable Contrast Enlarger. If you can find one, a used vintage Durst Laborator 138 S (with lens) can be had for about $1,000 and it can make a 24 X 36 mm print from a 135 format film. I suspect used medium format film enlargers and lenses would economical as well.