[LargeFormat] rising front
philip Lambert
largeformat@f32.net
Wed Jul 4 02:06:07 2001
Thanks - I understand you but you did not exactly answer my enquiry. On the
other hand nobody else answered at all. It must be the holiday season.. I
am now trying to get some rising front on my small-format Nikon using a 5x4
90mm Angulon but am still waiting for the engineer to do his bit. Philip
----- Original Message -----
From: "Frank Filippone" <red735i@earthlink.net>
To: <largeformat@f32.net>
Sent: Tuesday, July 03, 2001 2:31 PM
Subject: RE: [LargeFormat] rising front
> You must grasp the concept of image circle, or cone of light. The lens
> throws a circle of light, that is captured by film. The negative area is
> fixed in space, while the lens moves that circle of light up and down.
> Regardless of the format of the film, a movement of the cone of light is a
> movement in that cone. The negative just captures anm different piece of
> the image circle.
>
> Clear as mud?
>
> Frank Filippone
> red735i@earthlink.net
>
> -----Original Message-----
> From: largeformat-admin@f32.net [mailto:largeformat-admin@f32.net]On
> Behalf Of philip Lambert
> Sent: Monday, July 02, 2001 11:17 PM
> To: largeformat@f32.net
> Subject: [LargeFormat] rising front
>
>
>
> Is there some simple relationship between the format, the lens in use
and
> the difference a standard amount of rising front makes to image content.
> Does using a 180mm lens with an inch of rising front have the same effect
on
> image content on 5x4 as on 5x7? I appreciate the 5x7 has a wider field of
> view.
>
> Philip
>
>
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