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  1. Mock
    06-09-12
    Mock
    I did find a workaround, you can unscrew the silver part from the mount end of the lens and shim it inside there, mine already had a shim I could use as a template to cut more.
    I have no idea where to get a shim the right size, so I cut my own from post-it notes. I think I have 3 in there, it is not quite perfect yet, but I can stop down to f/2.8 and it will be sharp focus at 8mm.
    Adding a 4th post-it is too much, then there is a wee bit of extension....I will need to find some different kind of paper to shim it more accurately.

    For now I am satisfied.
  2. Mock
    05-17-12
    Mock
    Hi there, with your Cosmicar/Pentax 8-48mm, are you able to focus to infinity at 8mm on the Q with your adapter?
    I have the "RJ" C-Q adapter and infinity focus at 8mm is not possible unless I unscrew the lens a bit. I think that not all C-Q adapters are exactly the same register distance.

About Me

  • About stephography
    Country
    United States
    Location
    California
    Photographic Equipment
    Pentax Q
    About Me
    Enthusiast photographer :). www.stephanarias.com

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1 like Pentax Q & the Cosmicar-Pentax 8-48mm f/1.0 (img... 03-27-12 08:37 AM JohnTaylor An informative, original opening thread with a large sample of varied photos. Good stuff mate
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