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 |
