K 300/4
General Description
This lens was listed in catalogs as late as 1985, but it is virtually certain that production ended in 1981.
| Product Variations | ||
|---|---|---|
| Exact Name | SMC PENTAX 1:4/300 | smc PENTAX 1:4 300mm |
| Color | black | black |
| Year of Introduction | 1975 | 1977 |
| Catalog Number | 24340 | 24340 |
| Sold with Hood | — | — |
| Sold with Case | hard case: SMC PENTAX 4/300 | hard case: SMC PENTAX 4/300 |
Technical Specifications
| Optics | |
|---|---|
| Optical Formula | 7 elements in 5 groups |
| Aperture Range | f/4 ~ f/32 |
| Number of Aperture Blades | 8 |
| Minimum Focusing Distance | 4.0 m |
| Maximum Magnification | unknown |
| Mechanics | |
| Filter Diameter | 77 mm |
| Maximum Diameter | 85 mm |
| Length | 188 mm |
| Weight | 1020 g |
| Accessories | |
| Cap | plastic clip-on cap, 77 mm |
| Fitting Hood(s) | built-in hood |
| Fitting Case(s) | hard case: SMC PENTAX 4/300 |
