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

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Subject: [Leica] 21mm M Biogon question
From: mark at rabinergroup.com (Mark Rabiner)
Date: Wed Jun 25 23:33:04 2008

Balony.



mark@rabinergroup.com
Mark William Rabiner



> From: "A. Lal" <alal@duke.poly.edu>
> Reply-To: Leica Users Group <lug@leica-users.org>
> Date: Wed, 25 Jun 2008 07:42:53 -0400
> To: Leica Users Group <lug@leica-users.org>
> Subject: Re: [Leica] 21mm M Biogon question
> 
> 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.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Leica Users Group.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
>> 
>> 
>> 
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>> 
> 
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information



Replies: Reply from alal at duke.poly.edu (A. Lal) ([Leica] 21mm M Biogon question)
Reply from hoppyman at bigpond.net.au (Geoff Hopkinson) ([Leica] 21mm M Biogon question)
Reply from gregj_lorenzo at hotmail.com (Greg Lorenzo) ([Leica] 21mm M Biogon question)
In reply to: Message from alal at duke.poly.edu (A. Lal) ([Leica] 21mm M Biogon question)