Archived posting to the Leica Users Group, 2012/12/16

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Subject: [Leica] Rangefinder focusing limit
From: leowesson at gmail.com (Leo Wesson)
Date: Sun, 16 Dec 2012 18:38:19 -0600
References: <CCF3CE58.22BFD%chris@chriscrawfordphoto.com>

Or with the M coming out with live focusing, you can cheat the close point 
with diopter filters.  

Leo Wesson
www.leowesson.com

On Dec 16, 2012, at 18:17, Chris Crawford <chris at chriscrawfordphoto.com> 
wrote:

> I think its has to do with the physical limits of the rangefinder design.
> There are ways around it, like the system used on the Dual-Range
> Summicron, and some other RF lenses have been made that focus closer, but
> without rangefinder coupling at the closest distances.
> 
> I didn't know the Mamiya 6/7 could only focus to 6 feet. I think that's
> just the 150mm lens, the other lenses focused to 3 feet.
> 
> -- 
> Chris Crawford
> Fine Art Photography
> Fort Wayne, Indiana
> 260-437-8990
> 
> http://www.chriscrawfordphoto.com  My portfolio
> 
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> 
> 
> On 12/16/12 6:50 PM, "Richard Man" <richard at richardmanphoto.com> wrote:
> 
>> Idle wonder time: what limits the close focusing range of a rangefinder,
>> as
>> comparing to SLR lens? I imagine it's something inherent to the
>> rangefinder
>> design?
>> 
>> Furthermore, why is that the Leica can focus down to 3 feet or so, but the
>> Mamiya 6/7 can only focus down to about 6 feet?
>> 
>> Optical design or rangefinder limitation?
>> 
>> -- 
>> // richard <http://www.richardmanphoto.com>
>> 
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Replies: Reply from richard at richardmanphoto.com (Richard Man) ([Leica] Rangefinder focusing limit)
In reply to: Message from chris at chriscrawfordphoto.com (Chris Crawford) ([Leica] Rangefinder focusing limit)