Pentax DA* 300mm f/4 ED IF SDM

Designed to produce powerful telephoto images, the smc PENTAX-D★ 300mm F4 ED[IF] SDM is a uni-focal super-telephoto lens with a focal length equivalent to 460mm in the 35mm format. It minimizes chromatic aberrations by incorporating ED (Extra-low Dispersion) optical elements in its second and fifth lens. It also offers a minimum focusing distance of 1.4 m (4.6ft). Featuring advanced technologies, such as special optical glass elements and PENTAX-original lens coatings, it is designed to assure exceptional optical performance and deliver clear, high-contrast images, even at image-field edges.

Format: APS-C

Focal Length: 300mm

Closest Focus: 140cm 

Max. Magnification: 0.24x

Diaphragm: 9 blades

Internal Focusing: Yes

Autofocus: Yes (Built-in AF motor and screw drive)

Filter Size: 77mm

DA*-series lenses feature tightly sealed, weather-resistant and dust-resistant construction that enhance durability for use in rain or dusty conditions.

SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens to offer excellent water- and oil-repellent performance.

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

Incorporates Extra-low Dispersion (ED) glass lens elements to compensate for chromatic aberration.