Pentax D FA 15-30mm f/2.8 ED SDM WR

Weight: 1040 g
Brand: Pentax
Description: Mount: Mamiya 645, lens type: standard, focal length: variable, min. focal length: 55 mm, max. focal length: 110 mm, aperture F at min. focal length: 4.50, aperture F at max. focal length
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, internal focusing
Length: 143.5 mm
Diameter: 98.5 mm
Max. focal length: 30 mm
Min. focal length: 15 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 2x
Max viewing angle: 111 deg.min
Minimum focus distance: 0.28 m
Auto focus: There is
Bayonet: Pentax KA/KAF/KAF2/KAF3
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 9
Security: Dustproof, waterproof
Minimum viewing angle: 72 degrees min
Number of element groups: 13
Number of low dispersion elements: 3
Number of elements: 18