Archived posting to the Leica Users Group, 2013/11/22

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Subject: [Leica] Some Somy A7R sample with M lenses
From: roark.paul at gmail.com (Paul Roark)
Date: Fri, 22 Nov 2013 15:39:53 -0800
References: <CAJ3Pgh6ROFbF2KjYk8TrOtTSULP8Uma2Yo6UnGg4paJ=cHkE8w@mail.gmail.com> <CEB5329E.14107%mark@rabinergroup.com>
 
> The Zeiss people at Zeiss Day here a couple of weeks ago deny its a
> retrofocal design ...


I'm not a pro on optical design, but this is what Zeiss literature says:
http://www.paulroark.com/Otus-Design.JPG

With respect to wide angle optics, the retrofocus design minimizes the
color shifts and light falloff.  I suppose you can apply this concept even
to a 55 mm lens.  On the flip side, with respect to the Sony AR, they are
calling even the 35mm a "Sonar."  I guess the names are just becoming so
much nonsense.

Paul
www.PaulRoark.com
Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] Some Sony A7R sample with M lenses)
Reply from richard at richardmanphoto.com (Richard Man) ([Leica] Some Somy A7R sample with M lenses)
 In reply to: Message from roark.paul at gmail.com (Paul Roark) ([Leica] Some Somy A7R sample with M lenses)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Some Somy A7R sample with M lenses)