Pentax 18-270mm ED SDM - K-mount

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An All-Encompassing Zoom Lens,
Featuring a 15x Zoom Range

K-mount- Sept 10, 2012
Pentax 18-270mm ED SDM - K-mount An all-encompassing zoom lens, featuring a 15x zoom range from a wide 18mm to a long 270mm (equivalent to 27.5-414mm in 35mm format). Benefitting the long reach of this lens, two extra-low dispersion elements have been incorporated into the lens construction to help reduce chromatic aberration and improve overall image clarity. A minimum focus distance of 1.6' across the entire zoom range also makes this lens an effective tool for macro and close-up work.

The SDM autofocus system has also been integrated into the design, which utilizes a supersonic motor for fast, quiet autofocus operation. The lens also features a rounded 7-blade diaphragm for smooth out of focus regions and less susceptibility to highlight streaking.

Wide-to-telephoto zoom lens is equivalent to 27.5-414mm in 35mm format. Two extra-low dispersion (ED) elements help to reduce chromatic aberration and improve image quality and clarity throughout zoom range. SDM autofocus system incorporates a supersonic focusing motor for fast, quiet action. Specifically designed for use with Pentax K-mount DLSR cameras.

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Specifications
Lens type Zoom lens  
Max Format size APS-C / DX  
Focal length 18 270 mm  
Image stabilisation No  
Lens mount Pentax KAF  
Aperture
Maximum aperture F3.5 - F6.3  
Minimum aperture F22.0 - F45.0  
Aperture ring No  
Number of diaphragm blades 7  
Optics
Elements 16  
Groups 13  
Focus
Minimum focus 0.49 m (19.29")  
Maximum magnification 0.26 x  
Autofocus Yes  
Motor type Ultrasonic  
Full time manual Unknown  
Distance scale Yes  
DoF scale Yes  
Physical
Weight 453 g (1.00 lb)  
Diameter 76 mm (2.98")  
Length 89 mm (3.50")  
color Black  
Zoom method Rotary (extending)  
Filter thread 62 mm  
Hood supplied Yes  
Tripod collar No


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Pentax 18-270mm ED SDM - K-mount

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