I dont know why you edited my post but your reply to it makes no sense to me. Are you trying to say that at todays pixel densities (6-14Mp APS sized sensors) that the lens resolution doesnt matter and going to a smaller physical sized sensor via cropping and higher density sensor will not lower image resolution if you use a shorter FL lens of same quality? I say it WILL lower image quality because the lens resolution in absolute lines per millimeter is nowhere near the point where it isnt affecting final system resolution. Maybe if we were using 640x480 sensors it wouldnt matter, but not now, the lens IS affecting final image resolution even the best ones. Only if it had INFINATE resolution would it have zero effect when you used shorter lens/cropped sensor combination. i.e. using a shorter lens and cropping a 14mP sensor image wont be as good as using a longer lens and NOT cropping a 10mP sensor image.
JC OCONNELL [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jos from Holland Sent: Saturday, June 28, 2008 2:33 PM To: Pentax-Discuss Mail List Subject: Re: Sensor resolution V focal length.......... On top: if lens resolution (number of line per mm) is in same order of magnitude as the number of pixels / mm on the sensor. The lens has the huge advantage the the lines can be at any place even diagonally, but the pixels have discrete position making the pixels/mm much less effective, this leads to at least 50% advantage for the lens resolution..... On Top: "10 Mpixels" does not mean 10Mp for BLU or RED not even for Green Exact theoreticle comparison of lens resolution and pixel density is hard and will be very much picture content dependent Greetz Jos J. C. O'Connell wrote: > THE PROBLEM IS THAT AT CURRENT PIXEL DENSITIES OF THE SENSORS (fairly > high > relative to lens resolutions), > THE LENS'S RESOLUTION IS STILL A MAJOR FACTOR OF TOTAL SYSTEM RESOLUTION. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
