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.
|Lens Mount||PENTAX KAF2 mount|
|Lens Construction [Elements/Groups]||8 elements in 6 groups|
|Min. Aperture (f)||F32|
|Min. Focusing Distance||1.4m|
|Diameter & Length (mm)||83mm x 184mm (3.3|
|Weight (g)||1070g (37.7 oz.) w/o hood 1160g (40.9 oz) w/hood|