Showcase Pentax 50mm f/1.2 K

Discussion in 'Adapted Lens Sample Image Showcase' started by Amin Sabet, May 17, 2014.

  1. Amin Sabet

    Amin Sabet Administrator

    Aug 6, 2011
    I think this is one of the least expensive f/1.2 lenses out there. Not sure why that is, but I'm glad it's the case. Very good performer on my A7.

    Both of these were at f/1.2:

    DSC01139 by Amin Sabet, on Flickr

    DSC01126 by Amin Sabet, on Flickr
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  2. davect01

    davect01 Super Moderator Subscribing Member

    Aug 20, 2011
    Fountain Hills, AZ
    Looks like a solid lens
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  3. SpaceManSpiff

    SpaceManSpiff TalkEmount Top Veteran

    Dec 13, 2013
    Tucson, AZ
    Looks like you can get great subject isolation with that aperture on FF. The DOF must be wafer-thin though! Interesting PP effects on the first pic.
  4. Amin Sabet

    Amin Sabet Administrator

    Aug 6, 2011

    Attached Files:

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  5. xXx1

    xXx1 TalkEmount All-Pro

    Jan 15, 2013
    It is quite difficult to get as very few were made and it isn't cheap. I hope to see comparison of these legacy lenses and Mitakon speedmaster at 1.2.
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  6. Amin Sabet

    Amin Sabet Administrator

    Aug 6, 2011
    14289181508_c2557691ba_b. DSC01786 by Amin Sabet, on Flickr

    You wouldn't know it from the shot above, which is a bokeh challenge for any fast lens, but the Pentax 50/1.2 has the smoothest bokeh at f/1.2 of all the 50-58mm f/1.2-or-faster manual focus lenses I've owned (Zuiko OM 50/1.2, 55/1.2, Nikon 50/1.2 AIS, Canon 50/0.95, 50/1.2 LTM, Minolta Rokkor 58/1.2). It's really an underappreciated lens IMO.
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  7. tjdean01

    tjdean01 TalkEmount Regular

    Jan 14, 2015
    Shots looking good! I don't think I would have shot them wide open, but then again it is nice to see that it performs well at that aperture. I have the 50mm M f1.7 version which on m4/3s shouldn't be used wide open. With a focal reducer, it can be. Once I hook it up to the A7, however, I think wide open will be no issue at all.
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  8. Zanner

    Zanner TalkEmount Veteran Subscribing Member

    Aug 19, 2013
    Wisconsin, USA
    Love the first shot!
    I have the Pentax 50mm 1.7 and 50mm 1.4. I love them. I found the 50mm 1.7 in my father in laws closet and it was my first lens after the kit lens. It's what got me started on my addiction to old lenses.
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