Sensor and lens difference

Discussion in 'Black and White' started by asiafish, Nov 25, 2013.

  1. asiafish

    asiafish Leica Place All-Pro

    Aug 9, 2013
    Bakersfield, CA
    Andrew
    So I was driving along a rural road today (where I have shot before) and happened to have my big bag with me, so I stopped compared my current 3 cameras with their 35mm (equivalent) lenses. Shot all three with no exposure compensation.

    On the Leica X-2 I used Lightroom 5 to convert to monochrome with yellow filter effect, then imported to Silver Efex and applied my standard minimal post. Base ISO, f/4.

    On the Canon 6D I zoomed the 24-105mm L lens to 35mm, used Lightroom 5 to convert to monochrome with yellow filter effect, then imported to Silver Efex and applied my standard minimal post. Base ISO, f/4

    On the Leica M Monochrom I used the 35mm f/2.5 Summarit-M with physical yellow filter. Imported to Silver Efex for my standard minimal post. Base ISO, f/4



    Up first is the Leica X2 which with the 1.5 crop factor changes its 24mm to a 36mm equivalent.

    11056830816_7a0414fae9_b.
    X2-4-Edit.jpg by Lawman1967, on Flickr


    Next is the Canon 6D

    View attachment 6056
    _MG_0499-Edit.jpg by Lawman1967, on Flickr


    And finally the Leica M Monochrom. Time for a sensor cleaning.

    11056815406_727b75f3c5_b.
    L1000904-Edit.jpg by Lawman1967, on Flickr
     
  2. Brian

    Brian Super Moderator Subscribing Member

    Apr 3, 2013
    The Canon - a lot more light drop-off at the corners! I winder if it is the lens, or the sensor itself losing light at the corners.

    I should drag out my FD mount Canon 35~70 and give it a test on the M Monochrom, scale focus.
     
  3. asiafish

    asiafish Leica Place All-Pro

    Aug 9, 2013
    Bakersfield, CA
    Andrew
    Its the lens. The 24-105 vignettes heavily wide-open. There are profiles either native in the 6D (for JPG output) and in Lightroom that do much the same thing as Leica's lens coding. I did not apply the lens correction. I also usually apply mild vignetting in post on this type of shot.

    Here is the original Canon RAW with lens correction only, applied in Lightroom 5

    View attachment 6058
    _MG_0499.jpg by Lawman1967, on Flickr
     
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  4. tmldds

    tmldds Leica Place Regular

    183
    Nov 20, 2013
    Texas
    There are too many variables. In the MM shot, the tonal range is excellent with the pipe and pump, but the shadow needs to be lifted.