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Pentax K20D - guess the lens - WARNING: VERY LARGE IMAGE
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PostPosted: Tue Feb 02, 2010 7:35 pm    Post subject: Pentax K20D - guess the lens - WARNING: VERY LARGE IMAGE Reply with quote

I got a new (or actually old Smile ) manual focus lens yesterday - I've not yet adjusted my signature to reflect this.

I forgot the name of the lens - can you help me? Smile



PostPosted: Tue Feb 02, 2010 7:41 pm    Post subject: Reply with quote

No Ideas but it's a cute birdy Razz


PostPosted: Tue Feb 02, 2010 9:00 pm    Post subject: Reply with quote

What birdy I am still looking for it.... Laughing Laughing
No idea about the lens...Nice duck.


PostPosted: Tue Feb 02, 2010 9:05 pm    Post subject: Reply with quote

I vote for the 58mm f/2 Biotar or any variant thereof. Wink


PostPosted: Wed Feb 10, 2010 11:49 am    Post subject: Reply with quote

A much longer lens - it is a proper tele lens.


PostPosted: Wed Feb 10, 2010 12:18 pm    Post subject: Reply with quote

The amount of axial CA suggests some sort of tele.
I'm guessing it's not a medium but something longer.
Is K20D full-frame? If it weren't for the not-so-wild ducks over
here I'd guess it's 200mm, but with tame ducks it could be shorter.

edit: OK Anu mentioned it's a "proper tele lens". 300mm?


PostPosted: Wed Feb 10, 2010 2:20 pm    Post subject: Reply with quote

Esox lucius wrote:
The amount of axial CA suggests some sort of tele.
I'm guessing it's not a medium but something longer.
Is K20D full-frame? If it weren't for the not-so-wild ducks over
here I'd guess it's 200mm, but with tame ducks it could be shorter.

edit: OK Anu mentioned it's a "proper tele lens". 300mm?


K20d is a 1.5 crop camera.

Yes, 300mm is the right focal lenght - it is shot wide open. I wonder what lens this is?

And yes, the ducks are not too wild Smile


PostPosted: Wed Feb 10, 2010 3:16 pm    Post subject: Reply with quote

Ok anu -- let me guess --

sonnar 4/300 ? Smile

tf


PostPosted: Wed Feb 10, 2010 5:14 pm    Post subject: Reply with quote

trifox wrote:
Ok anu -- let me guess --

sonnar 4/300 ? Smile

tf


Yes, it is CZJ 300/4 Sonnar - however, it is not the one on my signature, but a new copy. It's a almost-mint zebra-version. The glass is in flawless condition, and it sure shows in the quality.


PostPosted: Wed Feb 10, 2010 8:40 pm    Post subject: Reply with quote

bingo -- another thing is -- I think that the sign of Jena Zeiss is visible on this picture ..

tf


PostPosted: Thu Feb 11, 2010 7:23 am    Post subject: Reply with quote

trifox wrote:
bingo -- another thing is -- I think that the sign of Jena Zeiss is visible on this picture ..

tf


Yes, I guess so - what I like the the bokeh (apart fromt the axial CA) quality - the way the OOF feathers are handled and how the (barely visible) bokeh highlights are rendered. Oh, and resolution isn't bad either Smile

Vastly undervalued lens in the market, IMHO.