Nikon f2 - Manual (Page 25)

Focusing isdone at full aperture with Nikkor lensesfittcd
with an automatic diaphragm. This technique provides
the brightest possible images on the focusing screen for
easy focusing and composing. It also minimizes depth of
field so that the image snaps in and out of focus dis­
tinctly.
The Nikon Type K screen comes with the camera as
standard equipment. To focus, turn the focusing ring on
the lens until the two halves of the rangefinder image
coincide to form a single, crisp image; when using the
microprism ring, turn until the microprism pattern shifts
to a sharp and crisp image. You can also focus on the
matte field that surrounds the rangcfinder/microprism
central area.
The lens can also be prefocused using the distance scale
engraved in both meters and feet on the lens barrel. Sim­
ply turn the focusing ring until the desired camera-to-
subject distance (as measured or estimated) is lined up
with the distance scale index on the lens barrel. This
technique is useful for candid shots of elusive subjects
when time does not permit through-the-lens focusing.