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Focusing
Look into the viewfinder and turn the focusing
ring until the image in the central prism screen
rangefinder can be seen most distinctly.
The
aligned image can be seen more accurately and
easier the longer the focal length of the lens.
Therefore,
first
focus
at the
maximum
focal
length of 76mm and then return the lens to the
desired magnification.
The lens can be zoomed
to any focal length and still maintain a sharp-
focused image.
Size of Subject at 1.5m (5 ft.):
Focal Length |mm|
13
25
30
50
76
Picture Area (cm)
72*100
36x50
24x33
16x25
12x16
Picture Area jin)
2 '4?*'- x 3 '3*»
1'2JS"« 1'7%" 9^'xl'l"
7^"x9«» 4%"x6%"
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