Archived posting to the Leica Users Group, 2008/06/25

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Subject: [Leica] 21mm M Biogon question
From: alal at duke.poly.edu (A. Lal)
Date: Wed Jun 25 04:42:22 2008
References: <C487325E.12E5E%mark@rabinergroup.com>

Hi Mark,

At the risk of re-igniting the old filter debate, I must disagree. In dusty 
environments I have found UV/SL filters to be invaluable. On more than one 
occasion a filter has sacrificed itself to save the front element of the 
lens on which it was mounted.

Regards,
Akhil

----- Original Message ----- 
From: "Mark Rabiner" <mark@rabinergroup.com>
To: "Leica Users Group" <lug@leica-users.org>
Sent: Tuesday, 24 June, 2008 11:23 PM
Subject: Re: [Leica] 21mm M Biogon question


> You don't NEED to get anything.
>
>
>
> mark@rabinergroup.com
> Mark William Rabiner
>
>
>
>> From: Geoff Hopkinson <hoppyman@bigpond.net.au>
>> Reply-To: Leica Users Group <lug@leica-users.org>
>> Date: Wed, 25 Jun 2008 09:42:07 +1000
>> To: 'Leica Users Group' <lug@leica-users.org>
>> 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
>>
>>
>> _______________________________________________
>> Leica Users Group.
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>>
>>
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>
>
>
> _______________________________________________
> Leica Users Group.
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> 


Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] 21mm M Biogon question)
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