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Pentax 55mm F/1.4 SMC DA* SDM K Mount Autofocus Lens For APS-C Sensor DSLRS {58}

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* Item pictured for illustrative purposes only, actual item not pictured.

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Pentax 55mm F/1.4 SMC DA* SDM K Mount Autofocus Lens For APS-C Sensor DSLRS {58} Description


The Pentax SMC-DA* 55mm f/1.4 SDM is a prime lens designed for Pentax DSLRs with APS-C sized sensors. The DA* 55mm f/1.4 SDM lens is great for portrait photography. This lens features Aero Bright Coating designed to deliver exceptional flare control and Pentax's Super Protect coating optimized to repel dust, water, and oil based material. The lens construction consist of  nine elements in eight groups that includes the floating focus operation for polish performance at close distances. The lens is lightweight and compact weighing 13.23oz.

Its fast F1.4 aperture offers outstanding depth of field control, and its rounded diaphragm blades create a more circular aperture for smooth, beautiful bokeh at large aperture settings. The PENTAX-original Quick-Shift Focus System allows instant switching from auto focus to manual focus operation.

KEH Specifications

  • Focal Length: 55 mm
  • Aperture Maximum: f/1.4
  • Aperture Minimum: f/22
  • Camera Mount Type: Pentax K
  • Format Compatibility: Pentax Digital (APS-C)
  • Minimum Focus Distance: 1.48' (45 cm)
  • Elements/Groups: 9/8
  • Angle of View: 28.6°
  • Autofocus: Yes
  • Tripod Collar: No
  • Filter Thread: 58 mm
  • Dimensions: Approx. 2.8 x 2.6" (7.11 x 6.60 cm)
  • Weight: 13.23 oz (375 g)
  • Manufacturer Part#: 21790



Compatibility Pentax Digital SLR Cameras
Application/Usage Camera

Physical Characteristics

Lens Mount Pentax KAF3

General information

Manufacturer Part Number 21790
Manufacture GTIN 0027075147348
Brand Name Pentax

Technical Information

Minimum Focus Distance 17.72"
Lens Construction 9 Elements in 8 Groups
Fixed Focal Length 55 mm
Maximum Aperture Fixed 1.4
Filter Attachment Diameter 58 mm

Customer Reviews