Pentax 17-70mm f/4 AL IF SDM SMC DA

Lens Reviews / Pentax Lenses i Lab tested
Lens Specifications
Name Pentax 17-70mm ƒ/4 AL IF SDM SMC DA
Image Circle APS-C
Type Standard Zoom
Focal Length 17 - 70mm
APS Equivalent 25.5 - 105mm
Max Aperture ƒ/4
Min Aperture ƒ/22
Diaphragm Blades 7
Lens Construction 17 elements in 12 groups
Diagonal Angle of View(Based on image circle) 79 to 23 degrees
Focus Details Internal; SDM with Quick-shift Focus System
Front Element Rotation No
Zoom System Rotary
Closest Focus 0.28m / 0.92 ft.
Magnification Ratio 0.31x / 1:3.2
Filter Size 67mm
Dimensions(Length x Diameter) 93.5mm x 75mm / 3.7 in. x 3.0 in.
Weight 485g / 17.1 oz (without hood)
Notes Included Accessories: Lens Hood
Typical Online Price US$600