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Telephoto Lenses with focal lengths longer than 60mm.

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  #16  
Old 18th February 2009
Paulpp
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Re: In praise of older lenses...

All intersting and am considering whether to go down this route. Looking on ebay the adaptors (from China) are very cheap and my suspect mind wonders if they are too cheap? What have others found?
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  #17  
Old 18th February 2009
mike_j
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Re: In praise of older lenses...

I have had no trouble whatever with the Chinese adapters, I have OM, M42 and Contax/Yashica. I think mine came from ROXSEN.
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  #18  
Old 18th February 2009
crimbo crimbo is offline
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Re: In praise of older lenses...

Quote:
Originally Posted by Paulpp View Post
All intersting and am considering whether to go down this route. Looking on ebay the adaptors (from China) are very cheap and my suspect mind wonders if they are too cheap? What have others found?
you can get them from a UK base on e-bay. they work okay.

for those of you thinking of 'legacy' lenses

Nikon 85mm f2


Meyer 300mm f4
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  #19  
Old 18th February 2009
Xpres
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Re: In praise of older lenses...

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Originally Posted by maccabeej View Post
Just bought of Ebay but not yet received an adapter for my old Pentax lenses (bayonet not screw). It is chipped so that it will give a confirm on focus point. When I have tried it will report back.
Jim
Make sure the protrusion on the baffle of your PK lenses doesn't foul the electrical contacts in the camera - I got a Kiron 28-85 stuck on my 520! Took an age to get it off! Could have been the quality of my adapter or the lens or the camera - I don't know, but I'm not using it again.
That said the adapter worked fine on the 420 with a 40mm pancake...
Just be careful.
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  #20  
Old 18th February 2009
Ellie Ellie is offline
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Re: In praise of older lenses...

Hmmm, this is turning into a very useful thread.
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  #21  
Old 18th February 2009
MarkVarley
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Re: In praise of older lenses...

I'm currently using alot of M42 lenses from my old Zenit kit, via a simple machined-aluminium adapter from ebay (may have been the aforementioned ROXSEN).

My partner uses similar adapters for her Nikon and Pentax glass.

Konica Hexanon AR lenses will go directly onto four-thirds with very minor modification (google is your friend), I don't have any yet but I'm looking for a cheap 28(ish)mm fast prime.
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  #22  
Old 19th February 2009
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Re: In praise of older lenses...

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Originally Posted by MarkVarley View Post
Konica Hexanon AR lenses will go directly onto four-thirds with very minor modification (google is your friend),
And here is some part of that modification...

http://e-group.uk.net/forum/showthread.php?t=4589


Pete
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  #23  
Old 19th February 2009
maccabeej maccabeej is offline
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Re: In praise of older lenses...

Quote:
Originally Posted by Xpres View Post
Make sure the protrusion on the baffle of your PK lenses doesn't foul the electrical contacts in the camera - I got a Kiron 28-85 stuck on my 520! Took an age to get it off! Could have been the quality of my adapter or the lens or the camera - I don't know, but I'm not using it again.
That said the adapter worked fine on the 420 with a 40mm pancake...
Just be careful.
Thanks for for the info on the baffle on the PK lenses. I ahve received the adaptor but because of a large amount of what looks like epoxy resin to hold the chip and contacts in I cannot mount my lenses. It fouls the baffle which proctects the aperture pin or in the case of my 1970's Hoya 70-150 the pin itself. Have not heard back from Seller yet.
Jim
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  #24  
Old 19th February 2009
Xpres
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Re: In praise of older lenses...

You can remove the baffle... depends on the particular lens, Often there are just a few screw holding it on.
One of the issues with legacy lenses on a digi back is too much light bouncing around the box, as the glass is designed to cover full frame 35mm. This can contribute to softness at full aperture. You could make your own replacement baffle - like the AR lens modification - which might help with image quality as well as making the lens fit.
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  #25  
Old 19th February 2009
mike_j
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Re: In praise of older lenses...

Is there a recommended diameter for the baffle hole to use on 4/3? I must admit I would find it difficult to make a good baffle plate, presumably the material needs to be quite thin and the hole very cleanly cut.
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  #26  
Old 20th February 2009
Xpres
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Re: In praise of older lenses...

You can get a circular hole cutter off ebay and elsewhere - like a compass but with a blade instead of a pencil. I'd just replace what you took off. If you use it without a baffle then there is more space and stuff for light to bounce off which reduces image quality and messes with the meter.
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  #27  
Old 25th February 2009
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Re: In praise of older lenses...

Here is the Tamron 200m at f3.5 Note the cobweb :-)
Spring is on its way: buds in the hedge about 18 feet away..



Pete

PS, regarding exit baffles: I haven't used these myself recently - mainly being lazy I guess. However I do observe that some of my legacy lenses need 1EV compensation under some circumstances. Personally I don't think the baffle improves the image but it may well improve the metering..
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