Shel Belinkoff wrote: > Hi Luben, > > There's something I don't understand. You mention 3600ppi color scans > yield a file of about 25mb for preview and web. That seems very small. > You should have a file a lot closer to 100mb. Then you ask about scanning > B&W negatives. Even those should be more than 25mb with a 16bit scan. So, > lets first start with what it is you're scanning and what scanner you're > using for your quality work. > > The Epson is a terrible scanner for 35mm negs, especially if you want ant > decent quality. > > Shel >
Hello Shel, Sorry for the error I have made. It is not 16bit color but 16bit grayscale. The final image is 4500x3000 pixels for a leica negative (most of the time I am shooting on 35mm film). The math is 4500x3000x2/1024/1024 = 25,7 Mb (2 bytes per pixel, Kb and Kb are 1024 bytes or kbytes). I make the gray from the green channel of the sensor (the red and infrared are somehow blurred, blue and green are OK but green has a greater dyniamic). I am using vuescan software and adjust the levels in cinepaint (some kind of GIMP supporting 16 and 32 bit color space). Cencerning the scanner, may be this is the cause that I could not get a decent quality of the scans. For my quality work I make silverprint copies in my wet darkroom. Maybe scanning the copies could give me better scans, I have to try... Best regards luben
