Product Description: The Pentax 50-200mm f/4-5.6 ED lens offers a wide 4x zoom ratio and offers focal lengths equivalent (in the 35mm format) from 76.5mm to 306mm. This wide coverage is ideal for a variety of telephoto applications, including portraiture, sports and scenery

Incorporates an Extra Low Dispersion (ED) glass lens element and 2 aspherical lens elements for true to life image reproduction and overall size reduction

Quick Shift Focus System allows to instantly switch the focus mode from AF to manual with a slight twist of the focus ring

The image circle in DA series lenses is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in Pentax digital SLRs to optimize camera performance. The new design also contributes to a drastic reduction in size, weight and production cost, compared to 35mm format counterparts with similar specifications

This lens is treated with SMC coating for maximum light transmission, sharp definition and high contrast images

Filter size is 52mm

f/Stop range is 4-22

Minimum focus distance is 3.6 feet

Magnification is 1:4

Zoom focus control is 2 touch

Angle of view is 31.5 to 8.1 degrees

Groups 10 Elements 11

Mount is Bayoneta

Diaphragm is automatic

Designed for exclusive use with Pentax KAF-mount digital SLR cameras

Electronic components

Included items: 52mm lens cap front, rear lens cap 

Dimensions: 3.1 inches wide x 2.6 inches deep

Weight: 9.2 ounces