Archived posting to the Leica Users Group, 2004/05/07

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Subject: [Leica] Re: variable aperture (was Re: Re: Ten years behind? I think not. )
From: ericm at pobox.com (Eric)
Date: Fri May 7 16:31:53 2004
References: <BCC163C0.B958%mark@rabinergroup.com> <5C069D4A-A07D-11D8-A7C3-0003930C1F28@bradbrad.com>
 
Brad:

>here's a question for you smart folks: why is it that leica's R-mount 
>zoom lenses are all variable aperture, whereas canon and nikon's pro 
>lenses are generally fixed aperture. 

I've wondered that, too.  Seems like if you have a 3x zoom, you should be
able to gain two "free" stops on the lower end.  At least in terms of the
physical size needed for the aperture.

--
Eric
http://canid.com/
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Re: Ten years behind? I think not.)
Message from brad at bradbrad.com (brad daly) (variable aperture (was Re: [Leica] Re: Ten years behind? I think not. ))