Archived posting to the Leica Users Group, 2019/01/16

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Subject: [Leica] Image Circles
From: rgacpa at (Bob Adler)
Date: Wed, 16 Jan 2019 08:58:13 -0800
References: <> <>

I think you?re right on Paul. There is a thread on the GetDPI Medium Format 
forum that concludes exactly this with good examples...

Bob Adler

> On Jan 15, 2019, at 5:51 PM, Paul Roark via LUG <lug at> 
> wrote:
> I think it's safe to assume it will not.  Leica is not about to built the
> best, most compact lens for a "35" film/sensor size (minimum image circle
> about 44mm) that would cover the 55mm image circle you need.  All else
> being equal, the larger the circle the lower the quality/$.
> Paul
> On Tue, Jan 15, 2019 at 4:22 PM Robert Adler via LUG <lug at 
> wrote:
>> Hi All,
>> I need some technical help please. I'm trying to find what the size of the
>> image circle on both the 75mm f/2 ASPH and the 135mm f/3.4 ASPH. The real
>> question is will the image circles of these lens cover a sensor size of
>> 43.8mm X 32.9? Is the image circle different at f/2 than f/11?
>> Thanks for your help,
>> Bob
>> Bob Adler
>> *"Capturing Light One Frame At A Time"*
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Replies: Reply from ken at (Ken Iisaka) ([Leica] Image Circles)
In reply to: Message from rgacpa at (Robert Adler) ([Leica] Image Circles)
Message from roark.paul at (Paul Roark) ([Leica] Image Circles)