I've never seen one, except in the B+W catalogue. You'll need to fid the
local agent. It lists a size 4 which fits up to 85mm and since the 24's
max. dia is 84mm it may just work :)
Andrew
>Where can I find a description and place to buy these
>universal adapters from B+W? This might be a solution
>to the problem of the 24 shift not taking external
>filters so I am very interested.
>
>Mark Lloyd
>
>--- andrew fildes <afildes@xxxxxxxxxxxxxx> wrote:
>> I've been giving this some thought, esp. polarising
>> a 21mm - the trick
>> seems to be to use a much larger filter as close to
>> the lens front as
>> possible. For instance, the amazing 12mm rectilinear
>> Voigtlander Heliar for
>> the Bessa rangefinder uses a uses a step-up ring
>> which clamps on to the
>> nose of the lens (like many Oly hoods) and a 77mm
>> filter. If they can do
>> it...
>> The simplest is a 49mm step up to a much larger size
>> (i.e.62mm) which works
>> for a standard thick polariser on the 21/3.5. I'm
>> looking at alternatives
>> for the 21/4 and 15/4.5 Voigt. lenses I own which
>> are much more difficult
>> (the 15mm has a built-on tulip - part of the barrel)
>> and I notice that B+W
>> have a Universal Holder which clamps on to the
>> outside of the lens nose
>> with three screws and then takes a step-up ring.
>> It's made for lenses with
>> no filter threads but it should be possible to place
>> a filter's glass right
>> on the front flange of the lens with this, if the
>> lens has enough 'nose.'
>> Size 3 is for 37-70mm size lenses. Probably awkward
>> to use but if it's all
>> there is...
>> I'm also considering modifying an old metal or
>> rubber hood - cut off the
>> clamp ring and glue it to a step-up ring.
>> There's always a way. Quality slim polarisers are
>> ridiculous prices!
>> AndrewF
>>
>>
>>
>>
>> >Dean wrote:
>> >>Hmm. I really want a 24mm that will not vignette
>> with a Cokin P
>> >>filter - with all but one filter thread cut off,
>> and a Polarizer.
>> >>Will these work?
>> >
>> >
>> >I stopped using polarizer with the 24. Too much
>> vignetting. I guess I
>> >should get a slim one, but have to start
>> hemorrhaging first (thanks
>> >for spell-correction). I use a slim skylight and
>> the hood and that
>> >cause no problems.
>> >
>> >Henrik Dahl
>> >
>> >
>>
>>
>>
>>
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>>
>
>
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