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Product Highlights
  • f/4 - f/32 Aperture Range
  • 8/6 Elements/Groups
  • Full-Frame Format
  • SDM Supersonic Drive Motor
  • Weather Resistant
  • Pentax K Mount
Pentax smc DA 300mm f/4 ED IF SDM Lens Pentax smc DA 300mm f/4 ED IF SDM Len...
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Web Availability: Special Order
This product will be Special Ordered just for you from the manufacturer. We do not stock this item due to its uniqueness or import schedule. Special Order items are Final Sale, see our Return Policy for details.
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The high performance DA* 300mm ED (IF) lens incorporates an SDM system which creates a smoother, quieter auto focus.

Featuring a Quick-shift Focus System, switching from auto focus to manual is instantaneous. Weather and dust resistant, it’s the perfect lens for extreme weather conditions. Developed specifically for PENTAX digital SLRs, the DA* 300mm ED (IF) SDM lens has PENTAX SP coating which protects the exposed lens elements, and a focal length equivalent to 450mm in the 35mm format.


Product Specifications

Detailed Specifications
Lens Mount PENTAX KAF2
Focal Length 300mm (equiv 460mm)
Aperture  f/4
Minimum Aperture f/32
Lens Construction 8 elements in 6 groups
Angle of View 5.4° (w/ Pentax DSLR)
Minimum Focusing Distance 4.6’ (1.4m)
Filter Diameter 77mm
Maximum Magnification 0.24x
Diaphragm Control Fully Automatic
Number of Aperture Blades 9
Lens Aperture Ring n/a
Tripod Adapter Included, demountable w/ coin
Hood PH-RBK 77mm
Objective Cap O-LC77
Case S120-210
Max Diameter x Min Length 3.3 x 7.2” (83 x 184mm)
Weight (w/o hood) 37.7 oz (1070g)
Notes Supersonic Motor, Quick-shift Focus, SP (Super Protect) Coating, Filter Window, Detachable Tripod Mount

Questions & Answers

Pentax smc DA 300mm f/4 ED IF SDM Lens

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