'The M (Typ 240) - Leica's new baby reviewed' at Tim Ashley Photography

Discussion in 'Open Discussion' started by Amin, Apr 6, 2013.

  1. Amin

    Amin Administrator

    399
    Mar 28, 2013
    READ ON Tim Ashley Photography

    Excellent review by Tim Ashley.

    [Thanks serhan]
     
  2. Brian

    Brian Super Moderator Subscribing Member

    Apr 3, 2013
    Leica M, part 2: comparison with Monochrom | The TAO of Leica


    CMOSIS has not published the technical specifications of the new CMOS based detector. The only hard spec that I am certain of is the new CMOS sensor has a saturation limit of 40,000 electrons per pixel and the CCD used in the M9, M-E, and M Monochrom has a saturation limit of 60,000. CMOS sensors incorporate a lot of signal processing techniques on the chip to reduce noise, including double-sampling to average out noise. With a CCD, you do not have that capability.

    What's all this mean? Images from CCD's require more off-chip post-processing to reduce noise. CMOS sensors can do more with the data before it gets off the chip, and double-sampling means a 3dB reduction in noise before the image gets off chip. The CCD has a higher fill-factor than the CMOS sensor, meaning more material to increase well-capacity.
     
  3. serhan

    serhan Leica Place Regular

    66
    Mar 31, 2013
    NYC