- The macro lens of the 70’s and 80’s
- excellent portrait lens
- 100mm F4.0
- nice Bokeh
- clean, fungus free
- comes with filter and lenshood (detachable)
- can do 1:1 when used wit a extender like this
Lens Mount: Pentax K.
Optics: 5 elements in 3 groups. Pentax Super Multi-Coated.
Diaphragm: 6 blades, stops down to f/32. Full, and sometimes half-stop clicks.
Filter Thread: 49mm.
Close Focus: 1.48 feet (0.45m).
Maximum Reproduction Ratio: 1:2.
Size: 2.54″ diameter x 3.05 ” long (64.6 x 77.5mm), rated, when focused at infinity.
Weight: 12.4775 oz. (353.75g), measured. 12.70 oz. (360g), rated.