Nikon F3 - Manual (Page 55)

Type I: M atte/Fresnel field with central m icroprism focusing spot and
12m m ^ circle. Good for general photography.
Type K: Com bination of Type A and J screens. M atte/Fresnel field with
3m m ^ split-im age rangefinder spot surrounded by Imm -w ide m icro-
prism doughnut. Rapid and accurate focusing for subjects with both
straight
tines and ill-defined contours. Suitable for general photog­
raphy.
1,1 1)
Type L: Sam e as Type A screen but with split-im age rangefinder line at
a 45“ angle. Best for subjects w ith horizontal lines.
t
Type M i Fine-ground Fresnel field w ith 5.5m m >( clear spot and double
cross hair for use in parallax focusing on aerial im age, plus m illim eter
scales
for calculation of individual m agnification of objects or for
m easuring objects. Brilliant im age in dim light. Suitable for close-ups,
photom icrography and other high-m agnification applications.
■ !iCi .i-& 1
Type P: Sam e as Type K but with split-im age rangefinder line at a 45“
angle and etched horizontal and vertical lines as an aid to com position.
Rapid and accurate focusing for subject w ith horizontal or vertical lines
or ill-defined contours. Suitable for general photography.
li efy .
■ - • j ''
Type R: Sam e as Type A but with rangefinder prism s of sloping surfaces
at a sm aller angle and horizontal and vertical lines to aid proper com ­
position. W orks best with lenses having maxim um apertures from f/3.5
tof/5.6.
nllt r,
Type T: M atte/Fresnel field with split-image rangefinder, 12m m ^ re­
ference circle, and horizontal and vertical lines. Used when preparing
slides
for TV broadcasts. Dotted lines indicate standard TV screen
form at. Solid outline show s "safe action” area, whereas broken lines
indicate "safe title" area.