Originally posted by deejjjaaaa K20D has 23.4mm x 15.6mm sensor and WPi has 5.75mm x 4.31mm sensor, the ratio is ~14:1, but
full frames from K20D and WPi (not crops w/ a piece of keychain) have ratio ~9:1
If those sensor sizes are correct, then pixel density (effective pixel count) for the WPI will be 490 pixels per mm. A lot higher than my calculations. No wonder such big diference in performance given both shots are at same focal length (aprox), same distance and same ISO setting.
Agree that smaller pixels produce higher noise and bad high ISO results, but for God's sake, in the film days, most of us will never go above 400 ASA because grain was unacceptable?
I would be perfectly happy with a 42 mpix DSLR, that can be adjusted to ISO 64 and top at 800. That would cover better my film choices that otherwise would use if still using film.
Thats it, Pentax, give us a DSLR that can match Kodachrome sharpness and Superia's dynamic range. Make it ISO 64 TO 800 just us, film era oldies can feel comfortable.
Robert B