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Pentax Lens Review Database » Digital Era Pentax K-Mount Lenses » DA Prime Lenses
SMC Pentax-DA 21mm F3.2 Limited Review RSS Feed

SMC Pentax-DA 21mm F3.2 Limited

Sharpness 
 8.8
Aberrations 
 8.6
Bokeh 
 8.4
Autofocus 
 9.4
Handling 
 9.4
Value 
 8.7
Reviews Views Date of last review
96 383,476 Sat February 10, 2024
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Recommended By Average Price Average User Rating
95% of reviewers $404.17 9.11
SMC Pentax-DA 21mm F3.2 Limited

SMC Pentax-DA 21mm F3.2 Limited
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SMC Pentax-DA 21mm F3.2 Limited
supersize
SMC Pentax-DA 21mm F3.2 Limited
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Description:
The SMC Pentax-DA 21mm F3.2 Limited is a compact "pancake" lens designed for use on Pentax DSLR's only.

SMC Pentax-DA 21mm F3.2 AL Limited
© www.pentaxforums.com, sharable with attribution
Image Format
APS-C
Lens Mount
Pentax K
Aperture Ring
No
Diaphragm
Automatic, 7 blades
Optics
8 elements, 5 groups
Mount Variant
KAF
Check camera compatibility
Max. Aperture
F3.2
Min. Aperture
F22
Focusing
AF (screwdrive)
Quick-shift
Yes
Min. Focus
20 cm
Max. Magnification
0.17x
Filter Size
49 mm
Internal Focus
No
Field of View (Diag. / Horiz.)

APS-C: 68 ° / 59 °
Hood
MH-RBA 43mm
Case
Dedicated pouch
Lens Cap
Dedicated metal push-on
Coating
SMC,SP
Weather Sealing
No
Other Features
Diam x Length
63 x 25 mm (2.5 x 1 in.)
Weight
140 g (4.9 oz.)
w/ Hood: +15g
Production Years
2006 to 2013
Engraved Name
smc PENTAX-DA 1:3.2 21mm AL Limited
Product Code
21590 (black)
Reviews
User reviews
In-depth review
Unofficial Full-Frame Compatibility Tests by Pentax Forums
☆☆☆ No coverage at any setting
Show details
Notes
The filter thread on the lens is 49 mm. The dedicated hood which screws into the filter thread has a 43 mm filter thread.
One aspherical element.
Variants

Black and silver

Features:
Screwdrive AutofocusQuick ShiftAutomatic ApertureAPS-C Digital OnlyDiscontinued
Purchase: Buy the SMC Pentax-DA 21mm F3.2 Limited
In-Depth Review: Read our SMC Pentax-DA 21mm F3.2 Limited in-depth review!
Sample Photos: View Sample Photos
Price History:



Add Review of SMC Pentax-DA 21mm F3.2 Limited Buy the SMC Pentax-DA 21mm F3.2 Limited
Author:
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Ascending) Showing Reviews 91-96 of 96
Site Supporter

Registered: October, 2009
Location: Dublin, Ireland
Posts: 385

2 users found this helpful
Review Date: October 30, 2020 Recommended | Price: $250.00 | Rating: 10 

 
Pros: perfect starbursts, small size, clever lens hood
Cons: slightly soft corners
Sharpness: 7    Aberrations: 8    Bokeh: 8    Autofocus: 9    Handling: 10    Value: 10    New or Used: Used    Camera Used: K-S2, K200D   

So much more than the sum of its parts!

The standout features of this lens don't fit neatly into the provided boxes. The colors are rich yet balanced. The lens is tiny and sturdy. And the starbursts (or sunstars) are astonishing.

I bought this lens second-hand because I wanted a green SMC Pentax-DA 15mm Limited for landscapes, but I couldn't find an affordable copy. So I got this, hearing that the starbursts were comparable. Well, they are not "comparable," they are "every bit as good." It has become my favorite lens, with the possible exception of my DA Fish-Eye.

It's hard to explain why this lens is so good. It's sharp, but not perfect. ƒ/3.2 isn't all that fast. 21mm on APS-C isn't particularly wide. This should be a ho-hum lens.

And yet. And yet. This lens delivers. It is so tiny, the colors are so good, and the starbursts are so sharp. I now own four Limiteds: the 15mm, 40mm, 70mm, and this one. This is the pick of the litter.
   
Veteran Member

Registered: December, 2011
Location: Melbourne + Malvern East Victoria Australia
Posts: 377
Review Date: January 3, 2021 Recommended | Rating: 10 

 
Pros:
Cons:

great lens
   
New Member

Registered: September, 2016
Posts: 8

1 user found this helpful
Review Date: February 2, 2021 Recommended | Price: $470.00 | Rating: 9 

 
Pros: my standard–go to lens since 2007
Cons: none
Sharpness: 8    Aberrations: 8    Autofocus: 8    Handling: 8    Value: 10    New or Used: New    Camera Used: K-10 through K-1   

I bought this lens for my first digital K-10 Pentax in 2007 and it has been my primary go-to lens through a succession of Pentax bodies, through the K-20d, K-5, K-3, K-1, and K-70 and, although I have added other limited primes since then, it is still my favorite.

FWIW, I almost always default to an f/8 aperture priority. Had to have it repaired locally for loose screws, but been great since. Given the opportunity, I might someday update to the newer version (red band, versus the green band). And waiting to see what the 21mm full-frame will be (and cost).

For many examples, see: https://originalrefrigeratorart.blogspot.com and https://ora2.blogspot.com
   
New Member

Registered: November, 2019
Posts: 1
Review Date: March 19, 2023 Recommended | Price: $280.00 | Rating: 9 

 
Pros: Sharp
Cons: None
Sharpness: 9    Aberrations: 8    Bokeh: 8    Autofocus: 8    Handling: 9    Value: 8    New or Used: Used    Camera Used: Pentax K-3   

My 'walkabout' lens for my K-3, on which it represents the full-frame equivalent of approx. 31.5mm.

Very sharp with nice colour rendition.

Personally I'm uncertain of the merits of its unique lens hood - mine has been replaced with a NOS Pentax 49mm standard 50mm 1.4/1.7/2.0 round plastic hood that gets covered with an Optech/USA mini Hood Hat in lieu of a lens cap.

Occasionally pressed into action on my K-1, it works rather well at it's 21mm focal length with my preferred 1x1 crop option.
   
New Member

Registered: April, 2019
Posts: 7

1 user found this helpful
Review Date: May 28, 2023 Recommended | Price: $260.00 | Rating: 9 

 
Pros: Colour & contrast
Cons: Bit soft at the edges.. but not by much
Sharpness: 9    Aberrations: 8    Bokeh: 7    Autofocus: 8    Handling: 10    Value: 9    New or Used: Used    Camera Used: K3   

This is my most used lens for walking about. Love the images it produces, great colour and contrast. Lightweight and compact. Sharp and focus is good.
Anyway not much of a lens reviewer... here's some images taken on a recent walkabout.
You can make your own mind up - all SOOC jpegs.

   
Forum Member

Registered: September, 2021
Posts: 62

1 user found this helpful
Review Date: February 10, 2024 Recommended | Price: $120.00 | Rating: 9 

 
Pros: Size, built quality, lens hood, focal length
Cons: Sharpness outside of the center, sharpness in general

Like many users said before, the size is just awesome and the lens hood is something I like a lot.

The focal length is perfect for a lot of purposes.

But one thing to notice is, that this lens does produce horrible images if it has not been stopped down to at least F8 !!

Purple areas are simply dramatic of not stopped down, as well as a significant lack of sharpness in the corners.

If there is enough light, or you are using a tripod so that stopping down is possible, it produces really nice pictures.

Just don't buy this lens if shooting wide open is something you need :-)
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