Pentax SMC DA* Series 16-50mm f/2.8 ED AL IF SDM Wide Angle Zoom Lens for Pentax Digital SLR Cameras

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Product Details

• Product Dimensions: 3.9 x 3.3 x 3.3 inches ; 1.2 pounds
• Shipping Weight: 2 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B000NO5QV6
• Item model number: B000NO5QV6
• Average Customer Review: 4.3 out of 5 stars See all reviews (21 customer reviews)
• Amazon.com Sales Rank

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  Camera & Photo > Lenses > Digital Camera Lenses

• Date first available at Amazon.com: February 22, 2007

Product Description

Amazon.com Product Description
Designed for exclusive use with Pentax digital SLR cameras, the Pentax DA* 16-50mm f/2.8 wide-angle zoom lens is a terrific choice for landscapes, portraiture, and just about any other application. The lens features a tightly sealed, weather-resistant and dust-resistant construction to enhance durability in rainy or dusty conditions. The lens's three aspherical elements and two special optical glass elements, meanwhile, help compensate for chromatic and spherical aberration, producing images with superior contrast, clarity, and edge-to-edge sharpness. And thanks to the lens's Pentax-original Quick-Shift Focus System, you can easily and instantly switch from autofocus to manual focus.

Specifications

• Focal length: 16-50mm
• Maximum aperture: f/2.8
• Minimum aperture: f/22
• Lens construction: 15 elements in 12 groups
• Angle of view: 83 to 31.5 degrees (when used with Pentax digital SLR camera body)
• Number of diaphragm blades: 9
• Metering system: TTL open-aperture metering
• Minimum focusing distance: 0.3 meters
• Maximum magnification: 0.21x
• Filter size: 77mm
• Corresponding AF mounts: Pentax KAF2
• Dimensions: 3.3 inches in diameter and 3.9 inches long
• Weight: 19.9 ounces (without hood)
• Warranty: 1 year

Product Description
The PENTAX DA * 16-50mm F2.8 ED/AL (IF) wide angle zoom lens is designed for exclusive use with PENTAX digital SLR cameras and delivers the highest level of ultimate optical image quality. With aspherical elements, special optical-glass elements and original lens coatings, this lens is superior in terms of contrast, clarity and edge-to-edge sharpness. The 16-50mm features tightly sealed, weather-resistant and dust-resistant construction to enhance durability for use in rain or dusty conditions. It also features the PENTAX-original Quick-Shift Focus System for instant switching to manual-focus operation and PENTAX-original SP (Super Protect) coating to repel dust, water and grease. A new SDM system has been incorporated for smoother, quieter autofocusing operation using a built-in supersonic motor. Pentax SP coating protects the exposed lens elements Two ED elements and 3 aspherical elements compensate for chromatic and spherical aberration Developed specifically for Pentax digital SLR's Focal length equivalent to 24.5mm to 76.5mm in the 35mm format Accepts 77mm Filter Unit Dimensions (diameter x length) - 3.3 x 3.9 (84mm x 98.5mm); Weight - 19.9 oz. (565g) without hood; 21.2 oz. (600g) with hood

Customer Reviews

Most Helpful Customer Reviews

44 of 44 people found the following review helpful:

5.0 out of 5 stars Tremendous lens, a bargin compared to..., November 25, 2007

By	Hiram Grant "just call me Sam" - See all my reviews (TOP 500 REVIEWER)

If you've read my previous reviews, you know that I'm a retail camera salesperson. I get to use a wide variety of equipment, but I'm a bit picky on what I buy myself. I own this lens.

I couldn't be more pleased with this lens for my K10D. The images are crisp at all focal lengths and apertures. The focusing is both fast and smooth. (Note: it will require updating to firmware version 1.3 for the K10D to autofocus properly.) Build quality is top-notch, and the weather-proofing is nice, although I doubt I'll test that often.

Pentax has also equiped this lens with the older drive system, so that it can be used on older digital cameras, but the noise level goes up, and the AF performance, while decent, goes down.

This is an amazingly good deal compared to either the Canon or Nikon lenses in the same range. The Nikon has about the same build quality, but costs considerably more. The Canon has the IS system built into the lens (not necessary with Pentax); therefore, it costs about the same as the Nikon. A very good lens, it still doesn't have the build quality "feel" of the Pentax nor Nikon. Additionally, the 16mm makes the Pentax a bit wider, a big advantage for my type of shooting.

Simply put, without this lens, I'd be shooting Nikon.

10 of 10 people found the following review helpful:

5.0 out of 5 stars Great all-around lens, April 27, 2008

By	D. Gallot (Seattle, WA) - See all my reviews (REAL NAME)

Pros:
- Build quality is excellent
- Weather sealed
- Very sharp from F/4 across the entire zoom range
- Great colour rendition
- SDM works as advertised: fast and quiet

Cons:
- A tad soft at 16mm F/2.8

9 of 9 people found the following review helpful:

5.0 out of 5 stars EXCELLENT LENS TO OWN, March 27, 2008

By	JOHN HONG "TOKUSHI" (HUNTINGTON BEACH, CA, USA) - See all my reviews (REAL NAME)

Best walk around lens to own. With a K10D, you can have a weather proof combo for around $1,350. Where else can you find this kind of deal? If you add on a DA 50~135 with them, you can have an award winning camera with lenses range from 16~135 f2.8 for $2,100.

Both of these lenses have EXCELLENT SHARPNESS and BOKEH. DA 50~135 has "cleaner" picture though.

These are my 2 favorite lenses now. period.

If you want to buy something that is worth every penny, the combo I have listed above will do!!!