F* 300/4.5 ED [IF]

F* 300/4.5 ED [IF]

General Description

This lens is optically identical to the FA* 300/4.5, but there are several "mechanical" differences:

  • the F lens has a (removable) tripod mount — a truly usefull feature in a lens with such a focal length
  • a F lens features a built-in hood which is more convenient than that of the FA lens
  • the focusing ring of the F lens feels more solid and provides a better manual-focusing feel
  • placing the focusing ring in the manual-focus position is not enough in order to focus the F lens manually; in addition, the AF/MF switch on the camera body needs to be set to the "MF" position
Product Information
Exact Name smc PENTAX-F 1:4.5 300mm * ED [IF]
Color white-black
Year of Introduction 1987
Catalog Number 24320
Sold with Hood
Sold with Case soft case: SS10-22

Technical Specifications

Optics
Optical Formula 9 elements in 7 groups
Aperture Range f/4.5 ~ f/32
Number of Aperture Blades 8
Minimum Focusing Distance 2.0 m
Maximum Magnification 0.17 X
Special Features extra-low dispersion element(s), internal focusing
Mechanics
Filter Diameter 67 mm
Maximum Diameter 84 mm
Length 160 mm
Weight 880 g
Special Features tripod collar, AF/MF clutch
Accessories
Cap plastic clip-on cap, 67 mm
Fitting Hood(s) built-in hood
Fitting Case(s) soft case: SS10-22