Pentax DA 40mm f/2.8 XS Lens

Pentax DA 40mm f/2.8 XS Lens

Pentax DA 40mm f/2.8 XS Lens

B&H # PE4028 MFR # 22137
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Expected availability: 7-14 business days

Product Highlights

  • For Pentax K-01 Mirrorless Camera
  • 60mm Focal Length (35mm Equivalent)
  • Low Profile Design is 0.36" Thick
  • Short 15.72" Minimum Focusing Distance
  • Pentax KAF Mount
  • Aesthetic Design by Marc Newson
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Pentax 40mm f/2.8 overview

  • 1Description

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 60mm 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, color fidelity. The lens is compatible with the KAF mount and supports autofocus and automatic diaphragm controls.

60mm 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 color to your images.
UPC: 027075214569
In the Box
Pentax DA 40mm f/2.8 XS Lens
  • O-LC27 27mm Lens Cap
  • Rear Lens Cap (B) for Bayonet Mount Lenses
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Pentax 40mm f/2.8 specs

    Focal Length 61mm
    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
    Maximum Reproduction Ratio 1:7.69
    Optical Design 5 Elements in 4 Groups
    Diaphragm Blades 9
    Image Stabilization No
    Autofocus Yes
    Filter Thread Front: 27 mm
    Dimensions (DxL) 2.5 x 0.36" / 63.50 x 9.14 mm
    Weight 1.8 oz / 51 g
    Packaging Info
    Package Weight 0.35 lb
    Box Dimensions (LxWxH) 3.9 x 3.7 x 3.4"

    Pentax 40mm f/2.8 reviews

    DA 40mm f/2.8 XS Lens is rated 5.0 out of 5 by 3.
    Rated 5 out of 5 by from Excellent compact lens This very compact lens allows me to use my SLR almost anywhere as I would do with a small point and shoot. I've used the DA 40mm XS on my old Pentax K10D that has now found a new live as a camera for vacation and any situation when you don't want to transport a big camera-lens kit. Because the Pentax bodys are small, it's easy to put it in your pocket. The 40 mm with the 1.5X factor is perfect for many situations (portrait, landscape...) Only two small cons : it gives a bizarre look to your camera and the lens hood is not thightly attached.
    Date published: 2012-06-25
    Rated 5 out of 5 by from A fantastic, no excuses lens! I am just a photography enthusiast. The only things that are important to me in terms of lenses are how the pictures look and does the lens impede my shot. The first thing you'll notice about this lens is that it is tiny. It takes up almost no space in your bag and it weighs almost nothing. There is no reason not to bring it along on any shoot. It is so liberating to have this on your DSLR! The 40mm focal length reminds me of the 35mm Kodak Instamatic I had as a kid. It gives me near-WYSIWYG shots and you can be in social distance of your subject. I had this lens on my Pentax K-5 while I spent the day with my daughter. I took hundreds of shots, both indoors (fluorescent light) and outdoors on a sunny day. I should disclose that I brought all the photos into Lightroom 4 and I don't know if it made any corrections to my photos or not. Frankly, I don't care. The results were gorgeous! The colors popped. The details were sharp. And the depth of field with this lens is really fun. I captured a shot of my daughter where an object she was holding in front of her was out of focus and the background was also out of focus, drawing the eye right to my subject. I was also able to capture her jumping off of playground equipment in mid-air and launching a model rocket. In short, this lens does NOT get in my way. If my shots are bad it's a user error. My only wish is that this lens would be weather-sealed. I want to take this lens on a canoeing trip. I know the K-5 won't flinch but this lens just isn't in that class. In any case, this is a great utility lens at a great price. I didn't notice any flaws and, even in full sun, the lack of a lens hood didn't cause problems. The friction-based lens cap never popped-off accidently. If I had to come up with a negative thing to say it's that the lens might be difficult to interchange due to its size. It's so small there isn't much to grip during the swap. However, the benefits of that size far outweigh the cost.
    Date published: 2012-06-14
    Rated 5 out of 5 by from The most understated lens Not only this lens makes for a lovely, compact and unintimidating combo on K-1 even, but is a great performer across the full frame sensor, sharp wide open with only the very corners affected by a visible drop in sharpness. I've had this for over an year and prefer it to both FA 35/2 and FA 50/1.4 whenever I want to take impromptu portraits of people still feeling comfortable nearby a camera. Moreover, I always throw it in the backpack in addition to the zooms because weight is not a concern even if I go out for a multi day backpacking.
    Date published: 2018-09-08
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    Pentax 40mm f/2.8 Q&A

    Pentax 40mm f/2.8 accessories

    Designed for use with:

    • Pentax K-3 II
    • Pentax K-70
    • Pentax K-S2
    • Pentax KP
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