Pentax 16-45mm f/4 ED AL SMC P-DA

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Lens Specifications
Name Pentax SMC P-DA 16-45mm f/4 ED AL
Image Circle APS-C
Type Standard Zoom
Focal Length 16 - 45mm
APS Equivalent 24 - 67.5mm
Max Aperture f/4
Min Aperture f/22
Diaphragm Blades ?
Lens Construction 13 elements in 10 groups, including 2 aspherical and 1 ED elements
Diagonal Angle of View(Based on image circle) 83 to 35 degrees
Focus Details Internal with "Quick Shift" AF/MF mechanism
Front Element Rotation No
Zoom System Rotary
Closest Focus 0.28m / 0.92 ft.
Magnification Ratio 0.26x / 1:3.8
Filter Size 67mm
Dimensions(Length x Diameter) 92mm x 72mm / 3.6 in. x 2.8 in.
Weight 365g / 12.9 oz
Notes Included Accessories: Lens Hood
Typical Online Price US$409.95