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Taking Photographs
Focusing the Lens
When the lens has been focused, the double image superimposing rangefinder produces two
superimposed images with in the square of the viewfinder.
Focusing method within the double image
coincidence zone
Position the subject within the central square of the
viewfinder. As on the top left the subject will appear as
double images.
Rotate the focusing ring until the two images converge
and are superimposed as on the figure on the left. The
lens is now focused.
Focusing method at the edge of double image
coincidence zone
Look at the object through the rangefinder and rotate
the focus ring so as to make two images into one
without any imaginal slippage at the edge of the central
double image coincidence zone. As this method
improves the focusing preciseness, this is especially
effective for N150 mm f/4.5 L lens.
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