Pentax HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens (Silver)
The silver
HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens from
Pentax is a high performance standard length zoom lens for K-mount APS-C cameras. Its 35mm focal length equivalency is 30.5-61.5mm providing a versatile and practical range for wide-angle to standard length shooting. It is the first zoom lens in the Pentax Limited Series line and brings with it a durable, weather-sealed body, HD lens coating and an optical design consisting of one ED element and one super-low dispersion element.
The f/2.8-4 maximum aperture enables effective low light shooting and, at the wide-angle end, control over its shallow depth of field for images that place sharp focus on the subject with a pleasing out of focus background. An in-lens direct current (DC) focus motor provides smooth and quiet autofocus action and its Quick-Shift Focus System enables rapid shift from autofocus to manual focus mode.
The lens barrel and the included hood are made from high-grade aluminum alloy, distance and depth of field scales are clearly marked on the barrel and a smooth rotating, knurled ring provides manual focus control. SP (Super Protect) coating on the front and rear lens elements repels dust, water and grease to help maintain peak performance.
Lens Mount | Pentax KAF3 |
Focal Length | 20-40mm (equiv. 30.5-61.5mm) |
Construction | 9 elements in 8 groups |
Angle of view | 39°-70° (w/ Pentax DSLR) |
F stop range | f/2.8-4 to f/22-32 |
Closest Focusing Distance | 0.9' (0.28m) |
Maximum Magnification | 0.20x |
Diaphragm | Fully Automatic |
Aperature Blades | Rounded (20mm f/2.8-4 40mm f/4-5.6) |
Filter Size | 55mm |
Dimensions (Min Length x Max Diameter) | 2.8" x 2.7" (71.0 x 68.5mm) |
Weight | (Without Hood) 10 oz (283g) |
Notes | HD Coating, SP (Super Protect) Coating, Quick-shift Focus |
Pentax HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens (Silver)
Front Lens Cap Rear Lens Cap MH-RA55 Lens Hood Lens Pouch
Loading ...
Login to get access to Q&A
Reviews Pentax HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens (Silver)