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JaccoW
Joined: 11 Nov 2010
Posts: 27
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 Posted: Thu Dec 30, 2010 10:23 pm Post subject: What did I buy? |
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JaccoW wrote:
I bought a strange looking lens from ebay a few days ago. Today it got in, but I have no idea what to do with it.
This is the lens:
Click here to see on Ebay
It is an M42 lens, but it is possible to change the aperture from F2.8 to F16, but no focus ring. For use on my Nex it is basically useless.
The seller says "Unknown lens, i think it is a kind of bellows lens."
Now I only paid a small amount for this lens and I was curious to what it was. Otherwise it is going in the collection.  |
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ManualFocus-G
Joined: 29 Dec 2008
Posts: 6622
Location: United Kingdom
Expire: 2014-11-24
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| Posted: Thu Dec 30, 2010 10:41 pm Post subject: |
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ManualFocus-G wrote:
Link doesn't work for me. But if there's no helicoid then I agree in thinking that it's a bellows lens.
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Graham - Moderator 
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
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Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
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| Posted: Thu Dec 30, 2010 10:47 pm Post subject: |
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Attila wrote:
Put only item number into brackets , not the whole url. Genuine link is fixed.
Wrong
[ebay]http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rt=nc&nma=true&item=200557105396&si=E7oN0LN87LehHvmkIcsRX%252F2INl0%253D&viewitem=&sspagename=STRK%3AMEWNX%3AIT[/ebay]
Good
[ebay]200557105396[/ebay]
_________________
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Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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spleenone
Joined: 26 Dec 2009
Posts: 1130
Location: Slovakia
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| Posted: Thu Dec 30, 2010 10:53 pm Post subject: |
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spleenone wrote:
Yes it should bellows enlagering lens. You need extra helicoid. It is possible to buy. Then I suppose that focal lenght will be between 50 and 100mm. Maybe it is sharp glass who knows 
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Shoot on analog mainly with
Nikkor glass
then Pentacon6TL for squares
and Fujica GL690 in case of 6x9
Carpe diem! |
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DSG
Joined: 04 Mar 2007
Posts: 544
Location: London, UK.
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| Posted: Fri Dec 31, 2010 12:28 am Post subject: Re: What did I buy? |
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DSG wrote:
| JaccoW wrote: |
I bought a strange looking lens from ebay a few days ago. Today it got in, but I have no idea what to do with it.
This is the lens:
Click here to see on Ebay
It is an M42 lens, but it is possible to change the aperture from F2.8 to F16, but no focus ring. For use on my Nex it is basically useless.
The seller says "Unknown lens, i think it is a kind of bellows lens."
Now I only paid a small amount for this lens and I was curious to what it was. Otherwise it is going in the collection. |
I dunno but could it be some kind of optical Telescope adapter, possibly homemade?
...If so, then the slot in the side of the sleeve might allow the sleeve to contract slightly when mounting on the telescopes focussing tube thus ensuring a snug fit and then perhaps an M42 mount camera would fit onto the other end? |
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Joosep
Joined: 25 Jan 2010
Posts: 305
Location: Estonia, Tallinn
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| Posted: Fri Dec 31, 2010 12:40 am Post subject: |
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Joosep wrote:
I think its a back part of a lens.
See that big line in the front ? The the focusing mechanism "rides" in it. So your missing the first bit. No idea what lens it is....
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The future is analogue.
23 cameras, 25 lenses and counting. |
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JaccoW
Joined: 11 Nov 2010
Posts: 27
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| Posted: Fri Dec 31, 2010 7:57 am Post subject: |
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JaccoW wrote:
Thank you for all of your reactions.
My first reaction was that it was half a lens, but the inner part with the lens is M42 as well (I tried it with an adapter). The line on the other hand would normally be for the focusing mechanism.
So it is possibly either for a bellow, or more intriguing, for a telescope.
I'll try to post some pictures tomorrow, but first tonight I'll celebrate New Years Eve with my family.
Happy new year everyone! |
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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Fri Dec 31, 2010 10:24 am Post subject: |
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martinsmith99 wrote:
Old enlarger/bellows lens is my guess.
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