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Pentax SMCP-DA 21mm f/3.2 AL HD Limited Edition Lens - Black, U.S.A. Warranty


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  • New Leaf 3 Year Extended Warranty + $19.95
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About Pentax 21mm F/3.2

This Pentax 21mm F/3.2 Bundle comes with $49.95 worth of free accessories including a New Leaf PLUS 3 Year Service Plan, and Shipping is free! . Bonus: No sales tax either, unless you live in New York or New Jersey. Test 1

Summary of Customer Reviews

Customers most agreed on the following attributes:
Fast / accurate auto-focus (7),Consistent output (5),Lightweight (5),Strong construction (5),Durable (4),Easily interchangeable (4),Rugged (3)
Best Uses:
General purpose (4)
Reviewer Profile:
Enthusiast (3)

Pentax 21mm F/3.2 Features

  • Highly-enhanced optical performance with both SP (Super Protect) coating and the PENTAX-original high-grade multi-layer HD (High Definition) coating, which assures much higher light transmittance than conventional multi-layer coatings delivering sharp, clear images with reduced flare and ghosting even under demanding, backlit conditions.
  • Wide-angle equivalent to 31.5mm in the 35mm format.
  • Ultra-thin, pancake design, landscapes, buildings, interior rooms
  • High-grade multi-layer HD (High Definition) Coating
  • Rounded diaphragm for stunning bokeh
  • Unique super-compact design in two colors

Pentax 21mm F/3.2 Specifications

8 elements in 5 groups
Angle of view
F stop range
Closest Focusing Distance
7.9 inches (0.2m)
Maximum Magnification
Filter Size
43mm or 49mm
Dimensions (Length x Diameter)
2.5" x 1.0" (63.0 x 25mm)
4.2 oz. (134g) without hood
Quick-shift Focus, SP (Super Protect) Coating

Pentax 21mm F/3.2 Reviews

Review Snapshot®


(based on 5 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 5 customers

(2 of 2 customers found this review helpful)


Amazing lens


from Galveston, Tx  -  Semi-pro Photographer

Alot of people overlook this lens and go for the DA15 (which is another amazing lens), but this is a great way to fill the gap between 15 and 40. It's a great walk around lens for everyday use. If close-range street photography is your thing, then this lens will probably never leave your camera. The colors are excellent, the contrast is great, and the focal length is just right. Not too long, and not too wide. The only complaint I have with it, is the lens hood. The lens hood snaps on over the filter rings, so there is no way to use a filter and the supplied lens hood at the same time. It's either one or the other. You can, however, get one of the universal lens hoods that screws into the filter threads and put it on over top of your filters. The supplied lens hood is metal, and delivers a substantial amount of protection to the lens due to its shape and coverage. Most of the time, you don't need a filter anyways, but if you like to use a CPL, then get the universal lens hood to go with it. Other than that, I have no complaints. This lens was designed and built with quality, and you can feel it when you using it.

(1 of 1 customers found this review helpful)


it lives on my K20D


from San Jose, CA  -  Hobbyist/Enthusiast

Since I favor the 35 and 28mm focal lengths for many of my travel shots on film, this lens covers both, making up the difference with a little shoe-leather zoom. Barrel distortion mentioned in some reviews is unnoticeable. If it bothers you, it is easily dealt with in a Photoshop CS application if you shot in RAW. The big advantage, though, is its diminutive size. It frees me from walking around the woods cradling a 72 filter size beer bottle zoom. I also carry the FA35 f2 and and A 50 f1.7.

(1 of 1 customers found this review helpful)


great travel lens


from Mercer Island, WA  -  Semi-Professional

It is on 90% of the time. Discrete, sharp, and great for travel


Pentax SMCP-FA 21mm f/3.2 AL Wide Angle


from Beverly Hills, CA  -  Hobbyist/Enthusiast

This Pentax lens combines, for me, the most useful focal length for general photography in a moderate wide-angle setting (for a digital-use lens). It is lightweight, with excellent build quality, and has a good compromise of lens speed versus size and weight. Photographic quality is "clearly" superior to the zoom kit lens at 21mm, with low aberrations and nice bokeh. If it were possible to gain a faster lens (f1.4)without the added weight that would be great but it is not possible.


Great lens


from Philadelphia, PA  -  Hobbyist/Enthusiast

Great lens with a focal length that is versatile enough to stay on my k10d all day long. Perfect size for travel.

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