This zoom lens offers a wide coverage of the telephoto range with a f/5.6 to f/45 aperture and a 35mm equivalent focal length of 118.5mm to 236mm. Its compact design allows for easy portability when travelling. Extra-low dispersion glass elements add high contrast to images and lessen chromatic aberrations. The minimum shooting distance is 2m throughout the entire zoom range, and the maximum shooting magnification is 0.18X (at 300mm). It is equipped with an inner focusing system and inner zoom design which are used to minimize changes in the total length and weight balance when focusing and zooming to provide superior ease of operation. The AF/MF operation can be performed quickly by simply sliding the entire focus ring forward or backward, while the manual focus operation can easily be altered after AF to allow for fine focus adjustments.
|Lens Mount||PENTAX 645AF2 bayonet|
|Focal Length||150mm – 300mm (Equivalent to 118mm – 236mm in 35mm format)|
|Angle of View||21° – 10.5° – 645 Film 17° – 8.5° – 645Z, 645D|
|Lens Construction(group/elements)||15 elements in 13 groups|
|Min. Aperture (f)||F45|
|Min. Focusing Distance||2.0m (6.56ft)|
|Number of Diaphragm Blades||8|