Pentax 300mm f4 DA* ED (IF) SDM Lens

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This new fast telephoto from Pentax is not only optically astounding but also supports the ultrasonic autofocus drive system for fast and quiet operation. Special optical glass including ED glass elements, aspherical lens elements and outstanding lens coating provide for excellent contrast characteristics, a consistent edge-to-edge sharpness and a particularly clear rendition of fine details.

As well as the outstanding imaging attributes, PENTAX engineers have raised the mechanical characteristics of the lenses to a state-of-the-art level. Built-in ultrasonic motors (Supersonic Motors) in the lenses provide for extremely quiet and fast autofocusing. Both lenses are also weatherproofed and protected from penetrating dust by appropriate seals. The front lens elements of the lenses use the special Pentax SP - "Super Protect" - fluoride coating technology. This nano-technology protects the front lens against dust, finger marks or smearing, making the lenses exceptionally easy to clean. The Pentax "Quick Shift Focus System" allows the photographer to manually alter the focus point at will without having to take the camera out of the autofocus mode.

Key Features

Focal length: 300 mm (460mm in digital SLR format)
Aperture range: F/4 - 32
Optical construction: 8 elements in 6 groups
Angle of view: 5.4° (with a PENTAX digital SLR body)
Minimum focus distance: 1.4 m
Magnification: 0.24x (1:4)
Filter size: 77 mm
Aperture control: Fully automatic
Aperture blades: 9
Lens hood: PH-RBK77 mm
Lens case: S120-210
Lens cap: O-LC77
Diameter x length: 83 mm x 184 mm
Weight: 1070 g
Supersonic Motor
Quick-shift Focus System
SP (Super Protect) Coating
Filter drawer
Removable tripod collar


Focal length - wide (mm) 300
Focal length - tele (mm) 300
Max aperture - wide 4
Max aperture - tele 4
Minimum aperture 0
Minimum focus distance (m) 0
Sensor format APS-C
Lens mount Pentax K
Lens elements 8
Lens groups 6
Aperture blades 9
Filter thread (mm) 77
Enlargement Ratio 1:4.2
Colour Black

More Information
Lens Mount Pentax K
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