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fermy
Joined: 17 Feb 2012
Posts: 2877
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 Posted: Mon Nov 19, 2012 8:45 pm Post subject: Help me ID the lens - Pentax/Cosmicar 25mm f1.9 |
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fermy wrote:
Bought this one described as "Lens for m4/3". It turned out to be a c-mount on c->m4/3 adapter. The top of the lens has been cut off, to turn it into a true pancake (total height is about 2cm). This also got rid of any ID's. Judging by FOV it's 25mm f1.9 lens. Aperture ring closely resembles Contax G in style. 5 bladed clickless aperture f1.9-f16, original MFD was 60cm, after modification it's about 30cm. Does anyone have any idea what it was?
#1
#2
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Last edited by fermy on Mon Jan 27, 2014 8:01 pm; edited 1 time in total |
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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| Posted: Mon Nov 19, 2012 10:42 pm Post subject: |
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iangreenhalgh1 wrote:
Now that is a wierd one. 
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dimitrygo
Joined: 01 Apr 2009
Posts: 561
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| Posted: Mon Nov 19, 2012 11:19 pm Post subject: |
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dimitrygo wrote:
Looks like this is Cosmicar http://www.mu-43.com/f17/cosmicar-tv-25-1-9-c-mount-lens-location-usa-ships-usa-can-35353/
See here its 50mm sibling Click here to see on Ebay |
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fermy
Joined: 17 Feb 2012
Posts: 2877
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| Posted: Mon Nov 19, 2012 11:27 pm Post subject: |
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fermy wrote:
Bingo! I already have a couple of 1.9/25mm Cosmicars, but they are different style:
The optics is probably the same though, as both have deeply recessed front element.
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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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| Posted: Mon Nov 19, 2012 11:40 pm Post subject: |
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iangreenhalgh1 wrote:
Ooh, a Pentax, I wonder if it will cover a NEX sensor?
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fermy
Joined: 17 Feb 2012
Posts: 2877
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| Posted: Mon Nov 19, 2012 11:52 pm Post subject: |
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fermy wrote:
Not completely. There is a very slight vignette on m4/3 sensor, slightly larger one on NEX. I'll snap a sample picture on NEX to show the coverage.
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FotoPete
Joined: 20 Nov 2012
Posts: 126
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| Posted: Tue Nov 20, 2012 7:25 pm Post subject: |
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FotoPete wrote:
Looks like a sawed-off C-mount lens. Where did you find it? 
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fermy
Joined: 17 Feb 2012
Posts: 2877
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| Posted: Tue Nov 20, 2012 8:25 pm Post subject: |
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fermy wrote:
Yep, sawed off Cosmicar 1.9/25. Found it on German ebay.
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Many lenses and some film bodies for sale here: http://forum.mflenses.com/canon-fd-minolta-md-c-mounts-m42-pentax-and-more-t50465.html
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hifisapi
Joined: 25 Sep 2012
Posts: 941
Location: USA
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| Posted: Wed Nov 21, 2012 5:56 am Post subject: |
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hifisapi wrote:
not much evidence left to go on...
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===========
ACQUIRED OVER 30 YEARS:
Cameras: DSLR=Pentax istDS FILM=Pentax SP, SP-F, ESII, SP1000, KX, K2
Lenses : Pentax M42 = Super Multi Coated Takumars 50/1.4 55/1.8 100/4-BELLOWS 500/4.5 1000/8 135-600/6.7 Pentax PK= SMC Pentax-Ks K17/4-FF Fisheye K18/3.5 K20/4 K24/3.5 K28/3.5 K28/2 K35/3.5 K35/2 K50/1.2 K50/1.4K 50/4-MACROK 55/1.8 K85/1.8 K100/4-MACRO K100/4-BELLOWS K105/2.8 K120/2.8 K135/3.5 K135/2.5 K150/4 K200/4 K400/5.6 K45-125/4K 85-210/4.5 Pentax PKM = SMC Pentax-M M40/2.8-Pancake M50/1.4 M75-150/4 M80-200/4.5 Pentax PKA= SMC Pentax-A A15/3.5 A50/2.8-MACRO A28/2 A35/2 A50/1.4 A135/2.8 A200/4 A*300/4 A35-105/3.5 A24-50/4 A70-210/4 TAMRON AD2= SP80-200/2.8 SP180/2.5 TOKINA AT-X PK= ATX28-85/3.5-4.5 ATX35-70/2.8 ATX60-120/2.8 ATX80-200/2.8 ATX100-300/4 ATX90/2.5 MACRO KIRON-LESTER DINE PK = 105/2.8-MACRO VIVITAR PK = 135/2.8-MACRO 28-85/4 NOFLEXAR AUTOBELLOWS PK = 60/4 105/4 |
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fermy
Joined: 17 Feb 2012
Posts: 2877
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| Posted: Fri Nov 23, 2012 1:58 am Post subject: |
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fermy wrote:
To me the pictures that dimitrigo linked to are very convincing, especially coupled with matching speed and FL and very deeply recessed front element (similar to many 50mm macros). Personally, I have no doubts now that it's Cosmicar 1.9/25mm.
Here are some sample pictures on NEX and EPL-1. First NEX:
#1 Wide open or close to it
#2 NEX, uncropped.
#3 Crop of the above
#4 NEX, uncropped
#5 Crop of the above
#6 NEX, uncropped
Now EPL-1 on a truly gloomy autumn day. The light was awful.
#7 EPL-1, uncropped. Vignette is almost nonexistent.
#8
#9 EPL-1, ISO 2000
Edit: re-uploaded the images lost in the server crash.
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Many lenses and some film bodies for sale here: http://forum.mflenses.com/canon-fd-minolta-md-c-mounts-m42-pentax-and-more-t50465.html
Flickr http://www.flickr.com/photos/96060788@N06/
Last edited by fermy on Tue Oct 14, 2014 1:31 pm; edited 1 time in total |
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IAZA
Joined: 16 Apr 2010
Posts: 2587
Location: Indonesia
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| Posted: Fri Nov 23, 2012 2:09 am Post subject: |
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IAZA wrote:
the cropped from NEX is really nice
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fermy
Joined: 17 Feb 2012
Posts: 2877
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| Posted: Mon Jan 27, 2014 7:58 pm Post subject: |
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fermy wrote:
These days whenever I get my hands on NEX, it is immediately confiscated by the subject of this photo. So I keep this Cosmicar as a body cap, because it's light, cheap and has a recessed front element. Ohh yeah, and it can take pictures too  ...
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Flickr http://www.flickr.com/photos/96060788@N06/ |
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