M 2000/13.5 Reflex
General Description
The only difference that I am aware of between this lens and its predecessor, the K 2000/13.5, is the "-M" which is part of the official name of this lens. In all other respects the lenses appear to be identical.
| Product Information | |
|---|---|
| Exact Name | smc PENTAX-M REFLEX 1:13.5 2000mm |
| Color | black |
| Year of Introduction | 1982 |
| Catalog Number | 24980 |
| Sold with Hood | built-in hood |
| Sold with Case | dedicated trunk: no name |
Technical Specifications
| Optics | |
|---|---|
| Optical Formula | 6 elements in 4 groups |
| Aperture Range | f/13.5 ~ f/13.5 |
| Minimum Focusing Distance | 20.0 m |
| Maximum Magnification | 0.12 X |
| Special Features | reflex lens |
| Mechanics | |
| Front-Filter Thread | no |
| Rear-Filter Diameter | 52 mm |
| Maximum Diameter | 180 mm |
| Length | 530 mm |
| Weight | 8000 g |
| Special Features | tripod collar |
| Accessories | |
| Cap | hard leather slip-on cap, 181 mm |
| Fitting Hood(s) | built-in hood |
| Fitting Case(s) | dedicated trunk: no name |
Subjective Evaluation
Since I am not aware of any tests of this lens, I cannot make any comments about its optical performance.