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Pentax DA 40mm f/2.8 Lens

Ultra-thin pancake prime lens for Pentax K-mount digital SLRs and the Pentax K-01

1 Review

Item # 815DA40

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Overview

Our take on the Pentax DA 40mm f/2.8 Lens

Milestones don't last for long anywhere in the world of photography. That being said, this is the single thinnest interchangeable lens we've ever seen, on any camera system (as of spring 2012). And even though it's a lens you could conceivably slip into a vest pocket, it's got optical properties that today's digital photography enthusiasts will find compelling. With its light-seeking f/2.8 aperture, this lens will make the most of the light in your environment. And with an effective 61mm focal length, it's ideal for snapshots and portrait photography.

Milestones don't last for long anywhere in the world of photography. That being said, this is the single thinnest interchangeable lens we've ever seen, on any camera system (as of spring 2012). And even though it's a lens you could conceivably slip into a vest pocket, it's got optical properties that today's digital photography enthusiasts will find compelling. With its light-seeking f/2.8 aperture, this lens will make the most of the light in your environment. And with an effective 61mm focal length, it's ideal for snapshots and portrait photography.

This lens is a product of renowned designer Marc Newson's imagination, and it makes an artistic impression on the front of the Pentax K-01 camera.

What's in the Box:

  • Pentax-DA 40mm F2.8 XS lens (with front and rear lens caps attached)
  • Operating Manual
  • Pentax Worldwide Service Network sheet
  • Serial Number Card

Product Highlights:

  • Pentax 40mm f/2.8 standard lens with 35mm equivalent of 61mm
  • compatible with Pentax K-mount digital SLR and hybrid cameras
  • low-profile lens is only 3/8" thin and less than 2 ounces
  • crafted by renowned designed Marc Newson
  • Pentax SP (Super Protect) coating on lens surface helps repel elements and aids in cleaning
  • constructed of 5 elements in 4 groups
  • minimum focus distance: 15-3/4"
  • minimum aperture: f/22
  • filter size: 27mm
  • lens is 13/16" thin, 2-1/2" in diameter
  • weight: 1.8 ounces
  • front and rear lens caps
  • warranty: 1 year
  • Our 60-day money-back guarantee
Reviews

Pentax DA 40mm f/2.8 Lens Reviews

Average Customer Review(s):

(1 Review)
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Details

Hands-on research

Features and Specs

General
Brand Compatibility Pentax
Image Stabilization No
Focal Length 40mm
Maximum Aperture F2.8
Weight 1.8 ounces
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Features

Overview: The smc Pentax-DA 40mm F2.8 lens is a fixed focal length, pancake-style prime lens for Pentax D-SLR and interchangeable lens cameras. Its 35mm equivalent is 61mm, and is ideal for general photography in existing light, and for creative applications featuring depth-of-field.

Lens Mount: The lens has a KAF-mount, and can fit Pentax D-SLR and interchangeable lens cameras with KAF, KAF2 and KAF3 mounts. This includes the Pentax K-5 and K-01 cameras.

Marc Newson Design: The lens' aesthetic design comes from world famous designer, Marc Newson, who also designed the K-01 camera.

Super Protect: The Pentax-original SP (Super Protect) coating repels dust, water, and grease to help keep the lens clean.

Specifications:

  • Focal Length: 40mm
  • 35mm Equivalent: 61mm
  • Lens Construction: 5 elements in 4 groups
  • Mount Type: KAF-mount
  • Maximum Aperture: F2.8
  • Minimum Aperture: F22
  • Maximum Magnification: 0.13x
  • Angle of View: 39°
  • Minimum Focus Distance: 1.31' (15.72")
  • Filter Diameter: 27mm
  • Dimensions:
    • Diameter: 2.454"
    • Length: 0.813" (1.05" w/caps)
    • Weight: 1.8 ounces

Our Product Research Team

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Staff Reviews

Product reviews from the Crutchfield Labs

Are you kidding me?

Written by Zak Billmeier, Staff Writer - Creative, on 4/30/2012 4:35:00 PM

How did Pentax do it? This lens is so thin, you'll think it's a lens cap. Pentax has long been known for their thin "pancake" lenses — but compared to them, this is a crepe.

All kidding aside, this lens turned out to be a fantastic performer. I tried it out for a couple weeks on the K-01 and was impressed. People will ask you about it, too.

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