Re: DPI and perception question

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Hi Paul and Andy,
 
    A 20 x 24" print at 300 dpi = 123.6 MB file. A 20 x 24" print at 240 dpi = 79.1 MB file. Scanning from 35 mm (1"x 1.5") film needs to be done at 4000 dpi so one can sample down to 20 x 24 " at 240 dpi.
 
    With regards to viewing I had an experience where I thought an area on the file was orange when the whole picture was viewed on the screen and when I printed it the area came out red and yellow. When viewing the file again at 100% it was red and yellow.
 
Roy
 
 
 
 
 
In a message dated 8/17/2007 1:05:46 P.M. Eastern Daylight Time, paul@xxxxxxxxxxxxx writes:
Not sure I understand the process exactly either but when I have a 35mm
negative scanned to be printed at a maximum 20x24 size, the file size
created by my lab is about 80meg
 




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