Thanks, Cotty. That is is bound to be the mount in the picture.
This particular lens is a Century Tele Athenar II 300mm, and this is
the bigger, faster version which I've only found referred to as a
T-mount lens, so the B4 mount is presumably a T-mount adapter,
exchangeable with any other T-mount. The big lens is f3.2 and easily
covers 35mm full frame. It's clearly bigger than the 16mm version
which came in C-mount or several dedicated versions like Bolex and
Arriflex and is f4.5 (more or less according to the mount) and looks
noticably different.
The really big Centuries were once regarded as the best big lenses by
surf photographers. I wonder if that reputation also held for the
relatively short models. It's probably worth the risk if the bidding
stays low.
regards, Anthony
"Of what use is lens and light
to those who lack in mind and sight"
(Anon)
2009/11/21 Cotty <[email protected]>:
> On 21/11/09, Anthony Farr, discombobulated, unleashed:
>
>>This is the mount of an interesting lens I'm watching at a well known
>>auction site:
>>
>>http://picasaweb.google.com/lh/photo/rm34A9BNjNwK_hwgzbp8Jw?
>>authkey=Gv1sRgCJKqrMO9zcen6wE&feat=directlink
>>
>>Does anyone know what it is? It might not be a still camera mount as
>>the lens has a history in broadcasting. It was used on a big old TV
>>camera so it should have ample coverage for my 4/3 Oly. I'm hoping
>>that there's a T-mount in front of that very plain bayonet as this
>>lens came in two versions, C-mount or T-mount, and that's too big to
>>be a C-mount. It's a reputable brand widely used in still, cine and
>>video, and with a day and a half to go the price is still rock bottom.
>
> Looks like a B4 mount to me. some links that might help:
>
> <http://lensadaptor.com/index.php/sony-b4-to-c-mount-adaptor.html>
>
> Pictures 2 and 3 down on this page:
>
> <http://www.visuals.co.uk/10pointcheck.asp>
>
> B4 mounts cover 2/3 inch video sensors (8.8mm X 6.6mm)
>
> HTH
>
>
>
> --
>
>
> Cheers,
> Cotty
>
>
> ___/\__
> || (O) | People, Places, Pastiche
> ---------- http://www.cottysnaps.com
> _____________________________
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