[LargeFormat] rising front

[Frank Filippone]

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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