Hi, I've been doing some calculations of print sizes and megapixels, and found something I don't understand.
If we assume the correct viewing distance for a print hanging on the wall is about 90cm, and we accept that the maximum size of the diagonal of the print should be half the viewing distance, then for the 4:3rds system the print should be 36x27cm, giving a diagonal of 45cm. This fits comfortably on A3 paper (29.7x42.0cm, about 11x16" in American). Printers generally seem to print at about 300 dots per inch, which is 118 dots per cm, as near as makes no difference. So for the printed area we need (27x118)x(36x118) = 13,534,128 pixels. Yet I'm sure I read about people making high quality 20x16" prints from 6 - 10 megapixel cameras. What gives? Thanks, Bob -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
