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Testing old lenses.

Discussion in 'Adapted Lenses' started by iliakoltsov, Jan 22, 2011.

  1. iliakoltsov

    iliakoltsov Mu-43 Regular

    Aug 7, 2010
    I started a blog, on M4/3 and legacy lenses and I am doing tests of lenses mainly look and feel and how easy it is to handle and how it renders.

    Ilia Koltsov - Micro 4/3 and legacy lenses

    Hope it will be useful for someone :D 
    • Like Like x 4
  2. BrianK

    BrianK Mu-43 Veteran

    Jan 20, 2011
    Lansing MI
    Its very useful, thanks!

  3. Spuff

    Spuff Mu-43 Top Veteran

    Dec 5, 2010
    Berkshire, UK.
    Yes, really useful, thanks.
    Is the Canon nFD the same as the FD or are they different things?
  4. The original FD lenses used a breech-lock mount where you positioned the lens against the camera body and rotated a breech (sliver ring in pic below) at the back of the lens to lock it in place.

    <a href="http://www.flickr.com/photos/55915417@N08/5285286522/" title="IMG_5992 by Lucky.penguin, on Flickr">
    Subscribe to see EXIF info for this image (if available)
    "500" height="333" alt="IMG_5992" /></a>

    The nFD or new FD mount used the same camera mount but the lenses were modified to a bayonet style where you had to rotate the entire lens to lock it into position. The breech was removed as shown below. The new FD lenses are easier to mount one-handed.

    <a href="http://www.flickr.com/photos/55915417@N08/5243299857/" title="IMG_5949 by Lucky.penguin, on Flickr">
    Subscribe to see EXIF info for this image (if available)
    "500" height="333" alt="IMG_5949" /></a>
  5. Spuff

    Spuff Mu-43 Top Veteran

    Dec 5, 2010
    Berkshire, UK.
    Is the nFD/FD mounting procedure immaterial on a m43 body given that you would need to use an adaptor?
  6. addieleman

    addieleman Mu-43 All-Pro

    Aug 5, 2010
    The Netherlands
    Thanks for this. Any chance we can see the full-size pictures?
  7. RedNumber5

    RedNumber5 Mu-43 Regular

    Dec 13, 2010
    Antioch, CA
    Thanks for the testing and images.
  8. AceStar

    AceStar Mu-43 Regular

    Jan 9, 2011
    Melbourne, Australia
    This is quite a helpful resource, thanks!

    If you have more time, it would be good to get some more types of sample images for the lenses tested, such as portraits, landscapes, etc. Portraits would be nice, as the crop factor makes many normal adapted lenses into decent options for portrait lenses. Not that I'm not grateful for the samples you have!
  9. The same mounting procedure applies when using an adpater, but all FD adapters have an aperture lock ring (where lock and open are printed on the pictures above) which which activates the aperture stop-down lever on the back of the lens mount. Unlike other bayonet mounts the base of the FD and nFD lenses do not rotate during mounting so there is no way to automatically move the stop-down lever into position. This is true for the new FD lenses as well because even though you rotate the body of the lens to mount it, the base of the lens does not move. The lock ring must be moved back to the open position to remove the lens.
  10. iliakoltsov

    iliakoltsov Mu-43 Regular

    Aug 7, 2010
    The main difference between nFD and FD consists on the mount that is not rotating the handling is very similar to a bayonet lens. You fix it the same way except the ring in order to fix it is the lens itself.

    nFD no moving parts on the mount

    FD moving ring for fixing the lens

    Other than that adapter for FD lenses are compatible with nFD. So in order to use FD or nFD lenses the same adapter is needed on Micro 4/3 , no extra adapter is needed. this just to clarify.

    Concerning larger pictures I will try to post some of them and I promise I will to vary a bit even though I love macro :p .

    I forgot to add I use DarkTable with AmaZe demosaicing algorithm and AWB in GIMP. Basically except the WB the pictures are straight from camera. For older ones that you can find in my flickr i used rawtherapee but the same comment is applicable.
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