you don't need four pixels to resolve two lines if one is black and one is white.
Herb.... ----- Original Message ----- From: "Alin Flaider" <[EMAIL PROTECTED]> To: "Herb Chong" <[EMAIL PROTECTED]> Sent: Wednesday, December 03, 2003 3:45 AM Subject: Re: FA 31 mm 1.8 limited > > 128 pixels/mm translates to 64 lines/mm (you need 2 pixels to > resolve a line). If the sensor resolution is 64 lines/mm, then its > max resolving power is 64/2 = 32 lines/mm.
