Pentax DA 15mm f/4 Lens

Wide-angle prime lens for Pentax K-mount digital SLR cameras

  • Pentax DA 15mm f/4 Lens


  • Pentax DA 15mm f/4 Lens

    Front, 3/4 view

  • Pentax DA 15mm f/4 Lens

    Top view

Item #: 815DA15

Review Summary

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Our take on the Pentax DA 15mm f/4 Lens

by Woody Sherman

Real Estate assistant

Have you ever considered the challenges a realtor has these days? Almost every house needs to speak for itself digitally, in pictures and video. And shooting houses, inside and out, isn't easy without the right lens. It's hard to get everything in the frame, and give prospective buyers a proper sense of scope.

That's where this Pentax DA 15mm f/4 lens comes in. It will help you put the whole subject into your image, while keeping any distortion to an absolute minimum. This same talent makes it perfect for landscapes, group shots, and anyplace where it's close quarters. This lightweight lens switches from autofocus to manual focus in an instant.

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  • Pentax KAF2 15mm f/4 low-distortion wide-angle lens with 35mm equivalent of 23mm
  • compatible with Pentax K-mount digital SLR and hybrid cameras
  • ED (extra-low dispersion) and aspherical glass lens elements correct chromatic aberration for excellent image quality and sharpness
  • lightweight, wide-angle lens is perfect for real estate, interior rooms, groups and landscapes
  • Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.
  • constructed of 8 elements in 6 groups
  • minimum focus distance: 7"
  • minimum aperture: f22
  • filter size: 49mm
  • lens is 1-5/8" long, 2-1/2" in diameter
  • weight: 7.47 ounces
  • supplied accessories: front and rear lens caps, soft case
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Brand Compatibility Pentax
Image Stabilization No
Focal Length 15mm
Maximum Aperture F4
Weight 6.7
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • Pentax-DA 15mm F4ED lens (with front and rear lens caps attached)
  • Carrying pouch
  • Operating Manual
  • Notification of Change of Company Name sheet
  • Pentax Worldwide Service Network sheet
  • Serial Number Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


Overview: The smc Pentax-DA 15mm F4ED AL Limited is a wide angle prime lens for Pentax D-SLR and interchangeable lens cameras. It has a screw-on type, 49mm lens cap.

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.

Quick Shift Focus: The Quick Shift Focusing System allows for instant switching from Auto to Manual focus. If focus is set to Auto, you can focus manually after autofocus is achieved by manually turning the focusing ring. This can be done without changing the focus mode to Manual.

Built-in Lens Hood: The lens has a built-in flower-shaped metal lens hood to keep unwanted light out of the lens, and protect the front of the lens. The lens hood simply pulls out when you need it. When extended, the lens hood adds approximately 1/2" to the overall length of the lens.

ED Glass: The Extra-low Dispersion (ED) glass lens element and a hybrid aspherical lens element offer superior sharpness with minimum chromatic and spherical aberration.

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


  • Focal Length: 15mm
  • 35mm Equivalent: 23mm
  • Lens Construction: 8 elements in 6 groups
  • Mount Type: KAF-mount
  • Maximum Aperture: F4
  • Minimum Aperture: F22
  • Maximum Magnification: 0.15x
  • Angle of View: 86°
  • Minimum Focus Distance: 7.08"
  • Lens Hood: built-in
  • Filter Diameter: 49mm
  • Dimensions:
    • Diameter: 2.486"
    • Length: 1.958" (2.248" w/caps)
    • Weight: 6.7 ounces

Product reviews from the Crutchfield Labs (what are the Labs?)

Quick impressions from the Lab

Comment by Zak Billmeier Staff Writer - Creative,

Nice & wide for your Pentax camera

Written by Zak Billmeier, Staff Writer - Creative, on 4/30/2012 4:19:00 PM

I tried this out recently with the Pentax K-01 camera. It's a roughly 22/23mm-equivalent wide-angle lens, and the first thing I thought as I got ready to put it on the camera was, "Wow, this feels like an old lens." Why? It's actually made of metal. You see, once upon a time they used to make everything out of metal. Just feels awesome in the hand.

It's also a pretty compact design, adding little bulk to the camera despite its metallic solidity. It gives you a nice wide-angle field of view that'll let you draw people into your photos — I like to go wide and get close.

And it actually has a built-in hood that you simply slide out after removing the lens cap. Brilliant. Wish all my lenses did that.

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Pentax DA 15mm f/4 Lens Reviews

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Filter by rating:
5 out of 5

Pentax DA 15mm Limtd lens

Written By Terrence, Portland on Tuesday, November 05, 2013
Crutchfield Customer Review (What's this?)
This is an excellent wide angle lens for Pentax dslr cameras. Auto focus is fast and accurate, color rendition is excellent and flair resistance is crazy good. It is small, well built and takes excellent images.
build quality, color rendition, field of view.
generally expensive, screw on cap
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5 out of 5

A wide angle jewel

Written By Lukulele, Blue Ridge Escarpment (NC) on Thursday, September 26, 2013
Crutchfield Customer Review (What's this?)
After going back and forth between the versatility of a Pentax 18-135 or the sheer quality of imaging from a DA 15 for a 2 1/2 week European hiking trip, the DA 15 via Crutchfield's special price was my choice. The ability to get wide mountain and valley shots after first snows in Austria and Slovenia plus great architectural and urban shots in Italy made for a lens to be used far more than I anticipated. I purposely shot into the sun to test the renowned flare resistance and star effects and both were indeed as other Pentaxians have alluded to. Compostion both horizontally and vertically is greatly eased by the width so cropping has actually been less than I expected. Adjustment in Lightroom has been very minor, limited to mostly to some effect enhancements. For the Pentax user these Limited lenses are crisp, light, and responsive. Most importantly the quality of imaging is truly a discernible difference.
Light, incredible width, sharp, renders colors with the superb Pentax prime saturation and depth that other brands can't match. Fully metal construction with internal lens shade and beautifully engraved lettering. Attached to a K-5 it makes for an extremely light and versatile kit.
Only negative is the the unusual screw on metal lens cap which I've supplemented with a vintage Pentax 49mm pinch cap.
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