Archived posting to the Leica Users Group, 2009/02/07

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Subject: [Leica] Is the DOF using a digital sensor any different than thatof film?
From: henningw at archiphoto.com (Henning Wulff)
Date: Sat Feb 7 00:30:09 2009
References: <BLU0-SMTP504288C23B0AA68D8D767D8CC00@phx.gbl> <9b678e0902051925v4dd7d486pd58bff41a6434fae@mail.gmail.com> <BLU0-SMTP472FC431CEE402999C8AAB8CC10@phx.gbl> <4cfa589b0902061752h78cf5434t1463edeebf766efd@mail.gmail.com> <F46DBF5D-217F-4700-B586-0548289A497C@mac.com> <328D0131D1C4477ABF8F1E596F2EBF75@jimnichols> <5DF476A4-3966-4483-9422-72118350C227@mac.com> <CD6A702A-8C56-4477-88A9-41DB82BC4DB5@mac.com>

At 10:47 PM -0600 2/6/09, George Lottermoser wrote:
>And when i worked with a specific view camera lens
>it never occurred to me
>to ask if the DOF changed
>when I changed the back
>from 8x10 to 5x7 or 4x5 or 6 cm x 9 cm.
>
>DOF does not change
>with a format change.
>DOF changes only with
>a change of f:stop or
>with a change in distance
>between the lens and the plane of focus.
>

George, you've used a Sinar, haven't you? On the depth of field 
scale, attached to the rear fine focus adjustment, the DoF scales are 
there for 4x5 or 5x7 or 8x10, or there is a combination scale. 
They're different for each format.



>Regards,
>George Lottermoser
>george@imagist.com
>http://www.imagist.com
>http://www.imagist.com/blog
>http://www.linkedin.com/in/imagist
>
>On Feb 6, 2009, at 10:26 PM, George Lottermoser wrote:
>
>>  When I worked more with view cameras a loupe on the ground glass 
>>gave me the information I needed.
>
>
>_______________________________________________
>Leica Users Group.
>See http://leica-users.org/mailman/listinfo/lug for more information

-- 

    *            Henning J. Wulff
   /|\      Wulff Photography & Design
  /###\   mailto:henningw@archiphoto.com
  |[ ]|     http://www.archiphoto.com

Replies: Reply from imagist3 at mac.com (George Lottermoser) ([Leica] Is the DOF using a digital sensor any different than thatof film?)
Reply from sethrosner at nycap.rr.com (Seth Rosner) ([Leica] Is the DOF using a digital sensor any different than thatof film?)
In reply to: Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] Is the DOF using a digital sensor any different than that of film?)
Message from don.dory at gmail.com (Don Dory) ([Leica] Is the DOF using a digital sensor any different than that of film?)
Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] Is the DOF using a digital sensor any different than that of film?)
Message from abridge at gmail.com (Adam Bridge) ([Leica] Is the DOF using a digital sensor any different than that of film?)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] Is the DOF using a digital sensor any different than that of film?)
Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] Is the DOF using a digital sensor any different than thatof film?)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] Is the DOF using a digital sensor any different than thatof film?)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] Is the DOF using a digital sensor any different than thatof film?)