[Leica] 21mm M Biogon question

[alal at duke.poly.edu (A. Lal)]

Hi Geoff,

Thanks for the reply. Yes it will be used on a film M.

Regards,
Akhil
----- Original Message ----- 
From: "Geoff Hopkinson" <hoppyman@bigpond.net.au>
To: "'Leica Users Group'" <lug@leica-users.org>
Sent: Tuesday, 24 June, 2008 7:42 PM
Subject: RE: [Leica] 21mm M Biogon question


> You mean on a film M? I have the 4.5 version of the Biogon. I never saw 
> any
> mechanical vignetting on the M7 with a normal UV or a polariser. 
> Definitely
> not a problem on the M8. I think that the slim ones don't have any thread 
> on
> the front. That won't matter if you are using the bayonet hood though. 
> Maybe
> try any 46mm filter for yourself. Two test shots wide open with and 
> without.
> But if you have to buy a new one and the front thread doesn't matter for
> you, the slim version is the logical choice.
>
> Cheers
> Geoff
> http://www.pbase.com/hoppyman/e
> http://gallery.leica-users.org/v/gh/
> -----Original Message-----
> Subject: [Leica] 21mm M Biogon question
>
> Hello Everyone,
>
> I picked up a 21mm Biogon/2.8 for the M mount and need a filter to protect
> the front element. Will a regular 46mm UV filter do, or will I need to get 
> a
>
> slim filter to prevent vignetting  in the corners?
>
> Thanks in advance
>
> Regards,
> Akhil
>
>
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