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Thread: Pentax K100D and Sigma 600mm Mirror Lens

  1. #21

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    The unique donut ring highlight is also nice for this lens?

  2. #22

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    I just bought a K10D and also own a Sigma 600mm Mirror-Telephoto.
    This thread is making me drool! From what I can tell, my Sigma should work with my 10D. But, I can't figure out how to actually mount the lens to the camera (clearly, am a novice at this). Tried lining up the red dots, but that didn't work. Am very afraid of any forcing. Any ideas?

  3. #23

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    Quote Originally Posted by 3djim View Post
    I just bought a K10D and also own a Sigma 600mm Mirror-Telephoto.
    This thread is making me drool! From what I can tell, my Sigma should work with my 10D. But, I can't figure out how to actually mount the lens to the camera (clearly, am a novice at this). Tried lining up the red dots, but that didn't work. Am very afraid of any forcing. Any ideas?
    It screws on like any other K-mounted lens. Perhaps you did not align them properly. You need to hold it by the neck because the focussing ring will move instead. PM me if you still have problems.
    cheers

  4. #24
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    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    Quote Originally Posted by airconvent View Post
    ar..fond memories, I had that Sigma 600 in green. Now I regret selling it
    K-5IIs, DA16-85, DFA50, DFA100, DA*60-250, 540FGZ II, 160FC, 201FG

  5. #25
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    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    airconvent,
    polish this up and make it into an article for the new Pentax web site we are having

    http://forums.clubsnap.org/showthread.php?t=297531
    Last edited by sbc; 26th July 2007 at 12:12 AM.
    K-5IIs, DA16-85, DFA50, DFA100, DA*60-250, 540FGZ II, 160FC, 201FG

  6. #26

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    any idea where to get this lens? is it good to use birding? i really wanna have a go at it if it is suitable for birding...

  7. #27

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    Hmmm... is there a great difference between those super zoom lenses & these 600mm lenses...? Heh, still a noob la, cos seems just like a difference in construction, how about function?

    Thanx

  8. #28

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    They're completely different in the way they create an image on the sensor.

    they should be -functionally- the same, except for autofocus (very hard to find an autofocus mirror lens) and aperture size (it's f/8 vs. at worst f/6.3)

  9. #29
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    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    Yes, they are different. ----> Mirror Lens.

  10. #30

    Default Re: Pentax K100D and Sigma 600mm Mirror Lens

    OIC thanx for opening my eyes on this...
    May the force be with you...

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