Interchangeable Focusing Screens for the Nikon F
Type A,L Type A: Matte Fresnel field with 3mm¢circular split-image
rangefinder spot and 12mm¢ circle. Rapid and accurate focusing.
Excellent for general photography. Type L: Same as Type A screen
but with split-image rangefinder line at a 45° angle. Best for
subjects with horizontal lines.
Type B Matte Fresnel field with 12mm¢ finegroudd matte focusing spot in
the center. Good for general photography, especially with long
telephoto lenses.
Type C Fine-ground matte field with 4mm~p clear spot and cross-hair
reticle. For photon~icro graphy, astrophotography and other
highmagnification applications, and for parallax focusing.
Type D Overall fine-ground matte field. For specialized close-up
photography and for use with long focal length lenses.
Type E Matte Fresnel field with 12mmp fineground matte spot and etched
horizontal and vertical lines. Ideal for architectural photography.
Type G Clear Fresnel field with extra--bright 12mm microprism focusing
spot for viewing and focusing in poor light. Four models (G1G4)
are available corresponding to specific focal length lenses. Depth of
field cannot be observed.
Type H Clear Fresnel field with microprism focusing pattern over the entire
screen area. Permits rapid focusing on any part of the screen with
optimum edge-to-edge brightness in poor light. Available in four
models (H1-H4) corresponding to particular focal length lenses.
Type J Matte Fresnel field with central microprism focusing spot and
12mm circle. Good for general photography.
Type K Combination of Type A and J screens. Matte Fresnel field with
3mm¢ split-image rangefinder spot surrounded by lmm¢
microprism doughnut. Rapid and accurate focus~g for subjects with
both straight lines and ill-defined contours. Suitable for general
photography.
Type M Fine ground Fresnel field with 5.5mm¢ clear spot and double
crosshair for use in parallax focusing on aerial image, plus
micrometer scales for calculation of individual magnification of
objects or for measuring objects. Brilliant image in dim light.
Suitable for close-ups, photomicrography and other
high-magnification applications.