A* 400/2.8 ED [IF]
General Description
| Product Information | |
|---|---|
| Exact Name | smc PENTAX-A* 1:2.8 400mm ED(IF) |
| Color | white-grey |
| Year of Introduction | 1986 |
| Catalog Number | 24590 |
| Sold with Hood | — |
| Sold with Case | dedicated trunk: no name |
Technical Specifications
| Optics | |
|---|---|
| Optical Formula | 8 elements in 8 groups |
| Aperture Range | f/2.8 ~ f/32 |
| Number of Aperture Blades | 8 |
| Minimum Focusing Distance | 4.5 m |
| Maximum Magnification | 0.13 X |
| Special Features | extra-low dispersion element(s), internal focusing |
| Mechanics | |
| Filter Diameter | 145 mm |
| Rear-Filter Diameter | 49 mm |
| Maximum Diameter | 165 mm |
| Length | 325 mm |
| Weight | 6000 g |
| Special Features | tripod collar |
| Accessories | |
| Cap | unknown |
| Fitting Hood(s) | built-in hood |
| Fitting Case(s) | dedicated trunk: no name |
