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Thread: Pentax files patent for 2 more Q lenses and a m4/3 one??

  1. #1

    Default Pentax files patent for 2 more Q lenses and a m4/3 one??

    http://www.imaging-resource.com/news...prime-for-four

    The 2 Q lenses seem interesting.

    A 45/1.8 lens (equivalent of a 207/1.8 on Q7/Q-S1 ! )


    The other is a improved 06 zoom that focuses closer up to 35cm.


    The last lens is a 7/2.6 for m4/3, which might just be a patent application to lock down the design rather than suggest the m4/3 route.

  2. #2
    Senior Member sunnycamera's Avatar
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    Default Re: Pentax files patent for 2 more Q lenses and a m4/3 one??

    200mm f1.8 sounds cool, should be cheaper than 4000+ sgd canon EF 200mm f1.8.
    K-01: S8FE, DA35, DA70 Flickr

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    Default Re: Pentax files patent for 2 more Q lenses and a m4/3 one??

    The 7/2.6 is just a projector lens by Ricoh...45/1.8 is not equivalent to 200/1.8. In terms of depth of field, it is equivalent to 200/8 of 135 format.

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    Senior Member sunnycamera's Avatar
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    Default Re: Pentax files patent for 2 more Q lenses and a m4/3 one??

    Quote Originally Posted by Lancelot365 View Post
    The 7/2.6 is just a projector lens by Ricoh...45/1.8 is not equivalent to 200/1.8. In terms of depth of field, it is equivalent to 200/8 of 135 format.
    it is more fun and exciting to say it 200mm equivalent f1.8 lens than 200mm f8 equivalent

    that is why those bridge compact cameras advertisement only mention focal length equivalent and never mention aperture equivalent
    Last edited by sunnycamera; 16th August 2014 at 10:35 PM.
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  5. #5

    Default Re: Pentax files patent for 2 more Q lenses and a m4/3 one??

    Quote Originally Posted by Lancelot365 View Post
    The 7/2.6 is just a projector lens by Ricoh...45/1.8 is not equivalent to 200/1.8. In terms of depth of field, it is equivalent to 200/8 of 135 format.
    Yes of course its about f8 in 135 format.
    But f1.8 is really fast for light gathering at 200mm eq.


    I reserve any judgement of this lens until it comes out (if ever).
    And then there is the question of pricing.
    I have been able to get some shallow DOF shots with the 06 for small objects despite all the "theoretical write off" that its about f12 in DOF equivalence to 135 format.
    So f1.8 should be better, though of course thats not ever going to be the strength of the Q system.


    IMGP2266 by jenkwang, on Flickr

    IMGP9839 by jenkwang, on Flickr

    IMGP0362 by jenkwang, on Flickr

    IMGP0418 by jenkwang, on Flickr

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    Default Re: Pentax files patent for 2 more Q lenses and a m4/3 one??

    Quote Originally Posted by pinholecam View Post
    Yes of course its about f8 in 135 format.
    But f1.8 is really fast for light gathering at 200mm eq.


    I reserve any judgement of this lens until it comes out (if ever).
    And then there is the question of pricing.
    I have been able to get some shallow DOF shots with the 06 for small objects despite all the "theoretical write off" that its about f12 in DOF equivalence to 135 format.
    So f1.8 should be better, though of course thats not ever going to be the strength of the Q system.


    IMGP2266 by jenkwang, on Flickr

    IMGP9839 by jenkwang, on Flickr

    IMGP0362 by jenkwang, on Flickr

    IMGP0418 by jenkwang, on Flickr
    Sure u can get enough separation even with Q and shallow DOF isn't always a good thing.

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