Product Highlights
  • f/2.8 - f/22 Aperture Range
  • 4/5 (Elements/Groups)
  • APS-C Format
  • Pentax K Mount
Pentax smc DA 40mm f/2.8 XS Lens Pentax smc DA 40mm f/2.8 XS Lens
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 Pentax DA 40mm f/2.8 XS lens is specifically designed for the APS-C sized Pentax K-01 mirrorless camera. The 40mm focal length is equivalent to 61mm on a 35mm format, and provides a slightly longer angle of view than normal. It features a maximum aperture of f/2.8 for low and existing light photography and greater control of depth of field. In addition to the wide aperture, the 9 rounded aperture blades help to provide a smooth bokeh that is accentuated in the highlights when photographing wide open. This prime length lens is ideal for general purpose photography and has a minimum focus distance of only 15.72" / 39.93cm for close up work.

This lens also features a highly aesthetic, minimal design by famed industrial designer Marc Newsom. The low profile measures 0.36" / 9.1mm thick and weighs 1.8oz / 51g. Pentax' SP (Super Protect) coating on the lens surface helps to repel moisture, dust, and dirt while providing greater clarity, contrast, colour fidelity. The lens is compatible with the KAF mount and supports autofocus and automatic diaphragm controls.

Key Features

  • 61mm focal length (35mm equivalent) provides a slightly longer than normal angle of view, ideal for use as a general purpose lens.
  • Fast f/2.8 maximum aperture for low and existing light conditions and creative depth of field applications.
  • 9 rounded aperture blades provide a smooth, natural quality to the out of focus regions of the image; especially in highlights.
  • Minimum focusing distance of 15.72" / 39.93cm for close up work.
  • Designed by Marc Newson for a minimal and attractive profile.
  • Pancake-style design is unobtrusive and lightweight, measuring 0.36" / 9.1mm thick and weighing 1.8oz / 51g.
  • SP (Super Protect) coating helps front lens element repel moisture, dirt, and dust while providing greater contrast and colour to your images.


Product Specifications


Detailed Specifications
Focal Length     61 mm
Comparable APS-C Focal Length: 40 mm
Aperture     Maximum: f/2.8
Minimum: f/22
Camera Mount Type     Pentax K
Format Compatibility     Pentax Digital (APS-C)
Angle of View     39°
Minimum Focus Distance     15.72" (39.93 cm)
Magnification     0.13x
Groups/Elements     4/5
Diaphragm Blades     9
Image Stabilization     No
Autofocus     Yes
Filter Thread     Front: 27 mm
Dimensions (DxL)     Approx. 2.5 x 0.36" (63.50 x 9.14 mm)
Weight     1.8 oz (51 g)

Questions & Answers

Pentax smc DA 40mm f/2.8 XS Lens

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