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Cabe26
Joined: 09 Aug 2013 Posts: 5
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Posted: Fri Aug 09, 2013 2:08 am Post subject: Please help identify lens/mount! JCPenney 135mm 2.8 |
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Cabe26 wrote:
I picked up this lens at an antique shop today for $10. It is a JCPenney 135mm f/2.8. I have just recently began researching these lenses to adapt to my Canon 5d mk II and am in need of some help to identify this lens and mount. I already have an M42 adapter, so I know that it is not an M42 mount. Is this a K mount? If so, what distinguishes it as a K mount, and what adapter should I use for K to EOS?
The lens reads: 1: 2.8 f= 135mm JCPenney Auto Lens =55mm No. 814135 and says that it is made in japan.
I'm also curious if $10 was reasonable ( I figure $10 is always reasonable) and if this is a good lens that I should keep. They also had a JCPenney 28mm f/2.8 that I might pick up tomorrow for $10. Same mount.
Thank you for your help!
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Andreq
Joined: 30 May 2011 Posts: 184 Location: Quebec, Canada
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Posted: Fri Aug 09, 2013 2:15 am Post subject: Re: Please help identify lens/mount! JCPenney 135mm 2.8 |
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Andreq wrote:
Cabe26 wrote: |
I picked up this lens at an antique shop today for $10. It is a JCPenney 135mm f/2.8. I have just recently began researching these lenses to adapt to my Canon 5d mk II and am in need of some help to identify this lens and mount. I already have an M42 adapter, so I know that it is not an M42 mount. Is this a K mount? If so, what distinguishes it as a K mount, and what adapter should I use for K to EOS?
The lens reads: 1: 2.8 f= 135mm JCPenney Auto Lens =55mm No. 814135 and says that it is made in japan.
I'm also curious if $10 was reasonable ( I figure $10 is always reasonable) and if this is a good lens that I should keep. They also had a JCPenney 28mm f/2.8 that I might pick up tomorrow for $10. Same mount.
Thank you for your help!
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image are blocked for 1 time poster
edit :
After a little search https://www.google.ca/search?q=JCPenney+135mm+2.8+pentax+k&um=1&ie=UTF-8&hl=fr&tbm=isch&source=og&sa=N&tab=wi&ei=CVEEUombM8nB4AOZvoG4BA&biw=1920&bih=1075&sei=J1EEUszoK_HJ4AOqnoHYAQ#imgdii=_
It seem to be made in multiple mount, including pentax K. It does look like a pentax K mount on your picture.
You can find cheap PK to EOS adapter on ebay. I get chipped adapter because I like to have the focus confirm light, but that's just me.
$10 is good for basic rebranded 135mm. I love this focal lenght and I got 4-5 of them (maybe more?). All brand from vivitar to (realy sh*t) kalimar.
The 28mm is probably in the same kind of quality for price. Cheap and decent if you don't have anything else. _________________ Body : Canon 5d Mark II, Canon 50d
Lenses : Carl Zeiss Planar 50mm f1.4 T*, Tamron 17mm f3.5, Rexagon 28mm f2.8, Rikenon 55mm f1.4, Prakticar Pentacon 135mm f2.8, Carl Zeiss Planar 50mm f1.7 T*, Promaster Spectrum7 70-210mm f4, Bell and Howell 28mm f2.8, Yashica Yashinon-DX 50mm f1.4, Nikon Series E 50mm f1.8, Vivitar 90-230mm f4.5 Close Focusing, Super-Takumar 55mm f2, Yashica 75-200mm f4.5 Macro 1:4, Canon "kit lens" 18-55
Last edited by Andreq on Fri Aug 09, 2013 2:20 am; edited 1 time in total |
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Cabe26
Joined: 09 Aug 2013 Posts: 5
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Posted: Fri Aug 09, 2013 2:17 am Post subject: |
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Cabe26 wrote:
What can I do so that they can be seen? Just post more? |
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Andreq
Joined: 30 May 2011 Posts: 184 Location: Quebec, Canada
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Posted: Fri Aug 09, 2013 2:21 am Post subject: |
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Andreq wrote:
Cabe26 wrote: |
What can I do so that they can be seen? Just post more? |
That's why I quoted your msg to have them working.
Anyway now you're good to post anything. See my edit for your answer. _________________ Body : Canon 5d Mark II, Canon 50d
Lenses : Carl Zeiss Planar 50mm f1.4 T*, Tamron 17mm f3.5, Rexagon 28mm f2.8, Rikenon 55mm f1.4, Prakticar Pentacon 135mm f2.8, Carl Zeiss Planar 50mm f1.7 T*, Promaster Spectrum7 70-210mm f4, Bell and Howell 28mm f2.8, Yashica Yashinon-DX 50mm f1.4, Nikon Series E 50mm f1.8, Vivitar 90-230mm f4.5 Close Focusing, Super-Takumar 55mm f2, Yashica 75-200mm f4.5 Macro 1:4, Canon "kit lens" 18-55 |
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Cabe26
Joined: 09 Aug 2013 Posts: 5
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Posted: Fri Aug 09, 2013 2:26 am Post subject: |
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Cabe26 wrote:
Thanks so much for your help. What is the chipped adapter with focus confirming light? And are there any problems with these lenses hitting the mirror at infinity focus? I've seen some talk about that on the M42 threads and am not sure if the same applies.
Also, since I plan on browsing some more antique shops in the coming days, what can I look for in the mount to determine if it is a Pentax K mount? |
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philslizzy
Joined: 07 Aug 2012 Posts: 4744 Location: Cheshire, England
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Posted: Fri Aug 09, 2013 4:18 am Post subject: |
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philslizzy wrote:
Looks like Olympus OM mount _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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Andreq
Joined: 30 May 2011 Posts: 184 Location: Quebec, Canada
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Posted: Fri Aug 09, 2013 4:21 am Post subject: |
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Andreq wrote:
http://www.ebay.com/itm/Big-is-AF-Confirm-Pentax-PK-Lens-to-Canon-EOS-5D-mark-II-adapter-with-cap-/170925788665?pt=US_Lens_Adapters_Mounts_Tubes&hash=item27cbf88df9
The chip is on the adapter and let the camera knows there's a lens. It's mostly fixed to 50mm f1.4, but doesn't affect much the exposition. You do have to find out how your lens behave in A mode anyway. Sometime you go over exposed and sometime under exposed.
I buy most if not all my adapter from Big_is. I find he has the best build quality of them all. I got 2 cheaper one from other seller and they are really crappy.
As for mirror hitting problem, see here http://www.panoramaplanet.de/comp/
I don't have any PK lens to be honest. I've just seen a lot of them latetly since I have a friend with a Pentax DSLR. What I try to look at his the small sliding tab hollowed part that move with the aperture ring (top right on the 3rd picture). The flatness of the mount itself, compared to a C/Y (Contax/Yashica) mount.
Furthermore, don't be temped to buy all those cheap lens. I did it first and ended up with a bunch of really low quality 28mm lenses (you find them so easily and cheap).
It really depends on what you want to shot and how you want to do it. I find that manual focus telephoto are a really nice place to save some money for an hobbyist. You can find good quality 300mm prime for 1/8 of the price of a modern AF lens. A nice fast 50mm f1.4 from mostly any brand can be had for $50. Won't be top of the line primes, but a pretty nice fast lens for indoor shooting and what not. _________________ Body : Canon 5d Mark II, Canon 50d
Lenses : Carl Zeiss Planar 50mm f1.4 T*, Tamron 17mm f3.5, Rexagon 28mm f2.8, Rikenon 55mm f1.4, Prakticar Pentacon 135mm f2.8, Carl Zeiss Planar 50mm f1.7 T*, Promaster Spectrum7 70-210mm f4, Bell and Howell 28mm f2.8, Yashica Yashinon-DX 50mm f1.4, Nikon Series E 50mm f1.8, Vivitar 90-230mm f4.5 Close Focusing, Super-Takumar 55mm f2, Yashica 75-200mm f4.5 Macro 1:4, Canon "kit lens" 18-55 |
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Lloydy
Joined: 02 Sep 2009 Posts: 7794 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Fri Aug 09, 2013 1:47 pm Post subject: |
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Lloydy wrote:
That's an Olympus OM mount, the little pin on the side is the giveaway. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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Cabe26
Joined: 09 Aug 2013 Posts: 5
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Posted: Fri Aug 09, 2013 4:35 pm Post subject: |
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Cabe26 wrote:
Thank you! Do all Olympus OM mounts have the 2 pins on the side? What makes it different from the PK mount? |
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DigiChromeEd
Joined: 29 Dec 2009 Posts: 3460 Location: Northern Ireland
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Posted: Fri Aug 09, 2013 4:45 pm Post subject: |
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DigiChromeEd wrote:
Cabe26 wrote: |
Thank you! Do all Olympus OM mounts have the 2 pins on the side? What makes it different from the PK mount? |
http://rick_oleson.tripod.com/index-99.html _________________ "I've got a Nikon camera, I like to take a photograph" - Paul Simon |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Fri Aug 09, 2013 4:52 pm Post subject: |
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luisalegria wrote:
This is ALMOST like PK. For that matter its almost like Nikon also.
Olympus mount lenses actually nearly mount on PK bodies. Not quite, but almost.
The visual differences -
Two buttons on the sides, as seen here, one is a lens mount release the other is a manual stop-down.
No hole or slot on the mount "flat" for the PK locking lug. PK is similar to Nikon in this, but the slot is in a different location.
These are the easiest indicators. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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philslizzy
Joined: 07 Aug 2012 Posts: 4744 Location: Cheshire, England
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Posted: Fri Aug 09, 2013 5:14 pm Post subject: |
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philslizzy wrote:
Some OM fitting lenses only have one button, the one that releases the lens from the camera. _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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Cabe26
Joined: 09 Aug 2013 Posts: 5
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Posted: Fri Aug 09, 2013 5:45 pm Post subject: |
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Cabe26 wrote:
You guys are the best.. Thanks for all the info |
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