| Lens Mount: | PENTAX KAF2 | Lens Construction: | 8 elements in 6 groups |
| Angle of View: | 5.4 degrees | Aperture: | F4 |
| Number of Diaphragm Blades: | 9 | Minimum Aperture: | F32 |
| Minimum Focusing Distance: | 55.2 inches (1.4m) | Filter Diameter: | 77mm |
| Maximum Magnification: | 0.24X | Dimensions: | 3.3 x 7.2" (83 x 184mm) |
| Weight: | 37.7 oz. (1,070g) | Case: | S120-210 |
| Objective Cap: | O-LC77 | Hood: | PH-RBK 77mm |
| Lens Aperture Ring: | N/A | Tripod Adapter: | Included, demountable w/coin |
| Diaphragm Control: | Fully Automatic | Focal Length: | 300mm (equiv. 450mm) |
| Notes: | Supersonic motor, Quick-shift focus, SP (Super Protect) coating, Filter window, Detachable tripod mount |