Re: Effects of lens length

[P3D William Carter <wc@xxxxxxxxxxxxxxxxxxx>]

Two different focal lengths will give you two differing depths of field. 
The shots (or crop) would be similar, but not quite the same.

Peter Davis writes:
"...in "Vertigo." There's a shot from the top of the bell tower looking 
down in which the camera tracks..."

This was a unique shot for the time. The Zoomar lens was in it's infancy 
then. This kind of stretch had never been done before. Hitchcock built 
the "bell tower" replica on a stage so that he could dolly down it's 
length while "zooming" out. The set cost $25,000, and hit the record for 
the most expensive piece of screen time. 

-- 
                wc@xxxxxxxxxxxx
    37deg 39.09'N x 122deg 29.56'W x 90'MLLW




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