HD Pentax-DA 645 28-45mm F4.5 ED AW SR

The HD Pentax-DA 645 28-45mm F4.5 ED AW SR is a wide angle zoom lens for the Pentax 645 medium format system, announced by Ricoh on August 4, 2014.

HD Pentax-DA 645 28-45mm F4.5 ED AW SR
MakerRicoh Imaging
Lens mount(s)Pentax 645AF2
Technical data
TypeZoom
Focus driveIn-lens DC micromotor
Focal length28-45mm
Focal length (35mm equiv.)22-35.5mm
Aperture (max/min)f/4.5 / f/32
Close focus distance0.40 metres (1.3 ft)
Max. magnification0.21
Diaphragm blades9
Construction17 elements in 12 groups
Features
Manual focus override Yes
Weather-sealing Yes
Lens-based stabilization Yes
Aperture ring No
ApplicationLandscape and architectural photography
Physical
Diameter99 millimetres (3.9 in)
Weight1,470 grams (3.24 lb)
Filter diameter82mm
Accessories
Lens hoodPH-RBC82
CaseS120-210
History
Introduction2014
Retail info
MSRP$4999.95 USD

References

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