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Lens Mount | PENTAX KAF3 mount |
Model No. | 23000 – Black |
Model No. | 23010 – Silver |
Focal Length | 20-40mm (30.5 – 61.5mm in 35mm format) |
Lens Construction [Elements/Groups] | 8 groups 9 elements |
Notes | HD coating Super Protect (SP) coating Rounded aperture (20mm: F2.8-4 40mm: F4-5.6) Quick-shift Focus System Includes Lens Hood MH-RA55 |
Angle of View | 70-39° |
Min. Aperture (f) | F22-32 |
Min. Focusing Distance | 0.28m |
Max. Magnification | 0.20X |
Filter Size | 55mm |
Diameter & Length (mm) | 71mm x 68.5mm |
Weight (g) | 283g w/o hood 291g w/hood |
Diaphragm control | Fully Automatic |
Number of aperture blades | 9 |