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Pentax/Cosmicar 25mm f1.4 Test drive

Discussion in 'Adapted Lenses' started by tamrong, Oct 21, 2010.

  1. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    I just got this lens

    it's very compact


    rough specification

    c-mount
    25mm
    f/1.4
    for 1" CCD
    diaphragm 8 Blade
    minimum focus distance 30cm
     

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  2. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    start with some flowers
     

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  3. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    very sharp even at f1.4
     

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  4. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    bokeh

    swirl type
     

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  5. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    some misc images
     

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  6. tamrong

    tamrong Mu-43 Regular

    32
    Jul 17, 2010
    chiangmai, thailand
    and finally , the vignette


    at close range 0.3 - 2m format 3:2
    the lens shows little or no vignette


    beyond 2 m the lens show some vignette

    not bad for CCTV Lens


    Cheers,
    tommy
     

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  7. Hards80

    Hards80 Mu-43 Rookie

    20
    Oct 19, 2010
    Cleveland, OH
    very interesting lens. the swirl bokeh is interesting and it is quite sharp for a cctv.

    thanks for sharing.
     
  8. Kosta

    Kosta Mu-43 Veteran

    435
    Sep 29, 2010
    Australia
    thank you so much! i have one of these on the way I can't wait to have a play with it!
    You take some wonderful photos tommy!
    thanks for sharing them! :) 
     
  9. f6cvalkyrie

    f6cvalkyrie Mu-43 All-Pro

    Feb 12, 2010
    Brussels, Belgium
    I own this lens since +/- 1 year and am very happy with it !
    Fast, sharp, little vignetting ....
    A very good fast "normal" lens on µ4/3

    Here's a few examples I shot over time :

    sized_P1090457.

    sized_P1090197.

    sized_P1070848bw.

    Have fun,
    Rafael
     
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  10. apicius9

    apicius9 Mu-43 Veteran Subscribing Member

    441
    Feb 1, 2010
    Philadelphia, PA
    Those are all very nice pictures, thanks for sharing them. From the ones I tried, I think this little lens is the best value in 25 mm c-mounts (considering the prices that older ones go for...). I still sold mine because it is a little small for my large fingers - and I still have a few others in that length. But I keep regretting that when I see nice pictures like these here...

    Stefan
     
  11. Kosta

    Kosta Mu-43 Veteran

    435
    Sep 29, 2010
    Australia
    i am enjoying mine now i've received it! :)  it's quite a good little (i emphasise little) lens!

    <a href="http://www.flickr.com/photos/50946580@N05/5121548091/" title="_A276575 by Kosta., on Flickr"> View attachment 152063 "500" height="500" alt="_A276575" /></a>

    <a href="http://www.flickr.com/photos/50946580@N05/5122150674/" title="_A276555 by Kosta., on Flickr"> View attachment 152064 "500" height="500" alt="_A276555" /></a>

    <a href="http://www.flickr.com/photos/50946580@N05/5121546887/" title="_A276540 by Kosta., on Flickr"> View attachment 152065 "500" height="500" alt="_A276540" /></a>
     
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  12. ksn

    ksn Mu-43 Veteran

    266
    Mar 6, 2011
    Does anyone know what kind of front cap I need for this lens or where I can get one?
     
  13. Stephen Geis

    Stephen Geis Mu-43 Top Veteran

    538
    May 13, 2010
    Charlotte, NC
    This looks likes a keeper of a lens! Very nice images on this thread
     
  14. starlabs

    starlabs Mu-43 Top Veteran

    856
    Sep 30, 2010
    Los Angeles
    You will need a 27mm lens cap - just search for one on Amazon. The first result will get you the Sunpak one, which was what I got. About $5...

    I like this lens but have not been using it much. I actually like the circular bokeh and vignetting. :thumbup:
     
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  15. ksn

    ksn Mu-43 Veteran

    266
    Mar 6, 2011
    Thanks for that. Ordered one :) 
     
  16. aznmochamike

    aznmochamike Mu-43 Regular

    42
    Jan 4, 2011
    California
    great pictures!!! I was wondering if I have the 20mm 1.7 is it worth it to buy this lens too?... I can't find where to buy the lens though can someone give me a website or something that sells it? thank you
     
  17. KS11

    KS11 Mu-43 Veteran

    411
    Jan 31, 2011
    Busan/Hong Kong
    Aznmochamike, u can find the lens on sale at ebay.
     
  18. aznmochamike

    aznmochamike Mu-43 Regular

    42
    Jan 4, 2011
    California
    but why do they all look different so i thought there were some fake ones out there
     
  19. ksn

    ksn Mu-43 Veteran

    266
    Mar 6, 2011
    I'm actually having a lot of fun with mine. Looks out of proportion on my camera cause the TV lenses are so thin.
     
  20. Stephen Geis

    Stephen Geis Mu-43 Top Veteran

    538
    May 13, 2010
    Charlotte, NC
    B&H sells them for $90 plus shipping. Here is the :43: link to the B&H website - search for Pentax 25mm
     
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