Archived posting to the Leica Users Group, 2010/09/07

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Subject: [Leica] New R Solution?
From: shino at panix.com (Rei Shinozuka)
Date: Tue, 07 Sep 2010 10:28:50 -0400
References: <C8AB40DB.2F2C%mark@rabinergroup.com> <1109424304.898501283865783803.JavaMail.root@dsmdc-mail-mbs12> <AANLkTinfjHMGkSmjYNHJNu_zd4Ggt_-o9uabfFUUuoMD@mail.gmail.com> <B3DDC2D2-D7F5-4747-A4B4-D861D5BA3F39@mac.com> <4C86470A.6000505@gmx.de> <5B97D9E3-F5D1-4314-9F95-89B58725EFED@mac.com>

  of another way of visualizing how the rectangular or square crops fit 
onto the image circle:

http://www.rytterfalk.com/wp-content/upload/1253263718-sensors.jpg

given a fixed image coverage circle, the maximally circumscribed 
rectangle cannot be extended into a maximally circumscribed square 
without reducing the longer dimension (36mm in this case.)

for 35mm the square format which would fit into lens coverage would be 
30.5mmx30.5mm.

-rei


On 09/07/2010 10:16 AM, George Lottermoser wrote:
> The rectangular or square diagonal = diameter of circle
>
> <  http://www.mathopenref.com/rectanglediagonals.html>
>
> Regards,
> George Lottermoser
> george at imagist.com
> http://www.imagist.com
> http://www.imagist.com/blog
> http://www.linkedin.com/in/imagist
>
>
>
>
>
> On Sep 7, 2010, at 9:07 AM, Douglas Sharp wrote:
>
>> George,
>>
>> not sure if my logic is a little off, but if a lens covers 36 mm 
>> horizontally and we are talking about an image CIRCLE not an OVAL, I 
>> expect it will cover a 36 mm square format too.
>>
>> Cheers
>> Douglas
>>
>> On 07.09.2010 15:41, George Lottermoser wrote:
>>> As wonderful as that would be;
>>> it would also cost way too much money (for me);
>>> and I'm not sure the full line of R lenses would cover that image circle.
>>>
>>> Regards,
>>> George Lottermoser
>>> george at imagist.com
>>> http://www.imagist.com
>>> http://www.imagist.com/blog
>>> http://www.linkedin.com/in/imagist
>>>
>>>
>>> On Sep 7, 2010, at 8:27 AM, Sonny Carter wrote:
>>>
>>>> Why not a 36 x36?
>>> _______________________________________________
>>> Leica Users Group.
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>>>
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>> Leica Users Group.
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>
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Replies: Reply from imagist3 at mac.com (George Lottermoser) ([Leica] New R Solution?)
Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] New R Solution?)
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] New R Solution?)
Message from grduprey at mchsi.com (grduprey at mchsi.com) ([Leica] New R Solution?)
Message from sonc.hegr at gmail.com (Sonny Carter) ([Leica] New R Solution?)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] New R Solution?)
Message from douglas.sharp at gmx.de (Douglas Sharp) ([Leica] New R Solution?)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] New R Solution?)