Pentax smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens

Pentax smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens

Pentax smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens

B&H # PE165028DA MFR # 21650
In Stock

Product Highlights

  • K Mount Lens/APS-C Format
  • 24-75mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • Two Aspherical and Three ED Elements
  • smc and Super Protect Coatings
  • SDM Focusing Motor
  • Internal Focus, Quick-Shift Focus System
  • Weather- and Dust-Resistant Construction
  • Nine-Blade Diaphragm
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Pentax 16-50mm f/2.8 overview

  • 1Description

A versatile standard zoom characterized by its bright f/2.8 constant maximum aperture, the smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens offers a 24-75mm equivalent focal length range and is compatible with Pentax APS-C-format DSLRs. The optical design incorporates a pair of aspherical elements and three extra-low dispersion elements to control chromatic aberrations and distortions throughout the zoom range and contribute to a high-degree of sharpness and clarity. A Super Multi-Coating has also been applied to reduce lens flare and ghosting for increased contrast and color neutrality.

Complementing the optical assets, this lens also features a Supersonic Drive Motor (SDM) to provide smooth, quiet autofocus performance and the Quick-Shift Focus System permits instant switching from AF to manual for fine-tuned focus control. Additionally, an internal focusing design maintains the overall lens length during operation and quickens focusing speeds. Benefitting working in a variety of climates, the lens also sports a weather- and dust-resistant construction as well as a Super Protect (SP) coating to repel dust, dirt, moisture, and grease from the front and rear elements.

Standard zoom 16-50mm lens is designed for APS-C-format Pentax K mount DSLRs where it provides a 24-75mm equivalent focal length range.
A bright constant f/2.8 maximum aperture benefits working in difficult lighting conditions and also offers increased control over depth of field.
Two aspherical elements and three extra-low dispersion elements minimize chromatic and spherical aberrations, as well as distortion, throughout the zoom range to produce clean, clear image quality with enhanced sharpness and detail.
A Super Multi-Coating has been applied to control lens flare and ghosting for improved contrast and color accuracy.
Supersonic Drive Motor provides quick, quiet, and smooth autofocus performance to benefit both stills shooting and video recording.
A Quick-Shift Focus System allows instant switching from autofocus to manual focus for quickly refining your focus position.
Inner focusing design maintains the overall length of the lens during operations and also contributes to faster, more responsive AF performance.
A nine-blade diaphragm helps to produce a pleasing bokeh quality when working with selective focus and shallow depth of field techniques.
Dust- and weather-resistant construction better enables working in harsh climates. Additionally, a Super Protect coating also protects the front and rear elements against dust, moisture, and smudging.
UPC: 027075129252

Pentax 16-50mm f/2.8 specs

Focal Length 16 to 50mm
Comparable Focal Length: 24 to 75 mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility APS-C
Angle of View 83° to 31.5°
Minimum Focus Distance 11.9" / 30.23 cm
Magnification 0.21x
Maximum Reproduction Ratio 1:4.76
Optical Design 15 Elements in 12 Groups
Diaphragm Blades 9
Autofocus Yes
Filter Thread Front: 77 mm
Dimensions (DxL) 3.31 x 3.88" / 84 x 98.5 mm
Weight 1.24 lb / 562 g
Packaging Info
Package Weight 2.05 lb
Box Dimensions (LxWxH) 6.2 x 6.2 x 4.9"

Pentax 16-50mm f/2.8 reviews

smc DA* 16-50mm f/2.8 ED AL (IF) SDM Lens is rated 4.1 out of 5 by 119.
Rated 2 out of 5 by from This lens is killing me Optics are fantastic and no complaints there. The problem is the AF. It only works when it wants. I am on my third lens and same problem every time. Well, the first one the AF never worked, second was great and then a week later died. Now after a few months it started acting up, then ok for a while and now just refuses to work. The photos are sharp and I love the output, but Pentax cannot get this lens right. They should take it off the market and FIX the problem. It is widely known that the AF is a HUGE problem with this lens. It is kinda a joke in Pentax world. Except for those of us who shelled out quite a bit of money and get stuck with a MF lens.
Date published: 2014-06-23
Rated 4 out of 5 by from Need time to get familiarised This product is superb in optics but flawed in some areas. That being said, it doesn't mean you should blame the lens for it's flaws. This is a lens that need a lot of time to get familiarised with its functions and how to maximise its output. For example, on some Pentax body the auto-focus will hunt or fail under low-light (which lens doesn't?) So you need time to know when the lens will work and when it won't, otherwise you will not be able to get good results from it. Overall it is a good buy if you already have couple of year of shooting experience and are looking for a weather-resistant good overall image quality lens.
Date published: 2013-12-22
Rated 4 out of 5 by from impressive lens Bought this as my general purpose, travel, and family lens. I'm not a pixel peeper and don't make huge enlargements so can't comment about absolute quality, but this lens more than meets my needs. With in-camera distortion correction turned on I find the short end very useful even at f/4 and wouldn't hesitate to shoot at f/2.8 if it was that or no image. With the K-5's excellent higher ISO performance, f/2.8 (of f/4 if you are fussy) is quite fast enough. Lens operates smoothly, autofocuses well, and is quite flare-resistent unless you are shooting into the sun, when some green spots can appear. A bit heavier than I had hoped, but that is only real complaint.
Date published: 2011-08-10
Rated 4 out of 5 by from Big, heavy stuff Just got it last week - the IQ is very good imho, silent operation and precise autofocus, even good for nice macro-like shots. I will definitely keep this lens on the camera for daily, general usage. Just be aware of the sheer size of this lens: it's much greater then the kit 18-55 and much, much heavier. Two hints: - my wife didn't used the camera anymore I since fitted this lens on: too heavy - I have to change my camera bag: the old one's zipper can't be ziped up now. Also, beware using the embedded flash in close-ups: it will give you a small dark area when used with subjects 1.5 meters and closer.
Date published: 2011-03-11
Rated 3 out of 5 by from Good and bad Purchased this a year ago as upgrade to DA 16-45. Former seems better built. Two issues: when shooting a series of shots at same subject from same position, some will have purple fringing around the edges and others will not. Why? Secondly, the barrel seems very loose when extended. Took it in for servicing and repair included a new SDM motor. Loose extension is a bit better but still far worse than the 16-45. That old lens was great, should have stayed with this but wanted f 2.8 vs. f 4. This lens is very capable of creating beautiful photos and the colour can be wonderful. I found out after purchasing that this product may have actually been manufactured by Tokina. Don't feel this is up to par for a DA* lens. Only have DA* 60-250 to compare this with and the 60-250 is a true professional lens, wonderful in so many ways.
Date published: 2015-08-15
Rated 5 out of 5 by from Awesome & Incredibly Versatile This is the most versatile lens from Pentax, it covers ultra-wide to normal range of focal-lengths and has a bright aperture to capture plenty of light and shallow depth-of-field. This lens is so essential to my photography that I bought a backup just in case. The lens sharpness is excellent once you stop down to F/4. At F2.8, there is some corner softness which is only visible in relatively large prints. The weather-sealing is top notch and this lens resisted a rough sandstorm which totaled several other lenses and cameras and the filter I was using to protect it.
Date published: 2012-04-15
Rated 5 out of 5 by from Outstanding Workhorse Lens! I was skeptical to get this lens after reading reviews about it being faulty (SDM) and not having the best IQ. I am glad I ignored the negative nancies and got it, because being deployed to Afghanistan (my second job is quasi photojournalism with all the reports I have to submit), it has taken the role of being my workhorse. It is used for 85% of all my photos, and I wouldn't imagine being without it. If I were to have all of my camera gear stolen, this is the first lens that I would get to replace the loss. An oustanding lens, I highly recommend it. The IQ is great, great contrast, and the build quality/durability is second to none. I often take it in the shower with me after being out and having it covered in baby powder like dust out here (it's really that fine).
Date published: 2012-07-08
Rated 4 out of 5 by from Professional quality lens This lens performs very well at outdoor landscape photography, for which I use it almost exclusively. I really like the fact that it maintains constant f/stop while zooming. The auto-focus is quiet and quick, and the optical quality is high. The lens' relatively high speed (f/2.8) necessitates that it be physically rather large. This is only fatal when using the pop-up flash because the lens body shields a considerable portion of its wide field from flash's illumination.
Date published: 2016-05-25
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Designed for use with:

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