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Pentax SMC DA* Series 16-50mm f/2.8 ED AL IF SDM Wide Angle Zoom Lens for Pentax Digital SLR Cameras | 
 enlarge | Brand: Pentax
Category: Photography
Buy New: $644.90
New (13) Used (3) from $610.00
Rating:  15 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Fragile: No
Batteries Included: No
Optical Zoom: 3.1
Maximum Focal Length: 50
Minimum Focal Length: 16
Shipping Weight (lbs): 1.3
Dimensions (in): 3.9 x 3.3 x 3.3
MPN: 21650
Model: 21650
UPC: 027075129252
EAN: 0027075129252
ASIN: B000NO5QV6
Release Date: August 15, 2007
Availability: Usually ships in 1-2 business days
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| Features:
| • | smc DA 16-50mm F2.8 ED/AL (IF) Lens, Lens Cap, Rear Lens Cap B (31006), Lens Hood, Lens Soft Case | | • | High performance, wide angle zoom lens | | • | SDM system creates smoother, quieter auto focus | | • | Weather resistant and dust resistant body | | • | Quick-shift Focus System for instant switching from auto focus to manual |
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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
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| Customer Reviews: Read 10 more reviews...
 Fantastic for the travel/outdoor photographer September 23, 2008
Diego Jose (Philippines)
Had this lens for a good 3 months now with the K20D and could not be happier!
The build quality is excellent, and it's a real bargain for the price! I used it in pouring rain at my trips to the islands, beaches, and mountains without problems! I sure love the weathersealing of this lens!
Focusing is virtually silent. I literally had to stick my ear to it to check if it was working haha. It could be faster though. Not as fast as the AF-S and USM.
Very sharp and good contrast wide open! No hesitation shooting wide open for sharpness and contrast. The bokeh isn't SUPER buttery smooth, a bit "busier" than I would like but happy with it. I can't compare the bokeh to the fast primes. There's a teeny bit of vignette wide open but I actually love vignettes.
I really like that it has a little window in the lens hood for filters. Very thoughtful and it's great for CPLs.
The zoom ring has a good feel, smooth and dampened. The feel of the zoom ring is about 4/5 for me, as it could be just a teeny bit smoother. The focusing ring isn't dampened much but very smooth. It doesn't have much travel though, which I would have liked for manual focusing. The manual focusing override is very convenient.
Be a bit careful of the quality control. I'm not sure if it has been resolved but I was much happier with my second copy of this lens.
All in all, a great purchase! Great product, great value and a great bargain/price!
Solid Performer August 28, 2008
Jehan Ghouse (Hebron, KY, USA)
Excellent image quality across the entire zoom and aperture range that lives up to the DA* designation. The f/2.8 shutter speed provides for shooting in lower light conditions. Attached to the Pentax K20D, it results in very fast and very quiet focusing, and good color and sharpness characteristics. Only drawback is that this lens is a bit bulky (77 mm diameter opening)and heavy.
Looks and feels solid. Nice bokeh. Wish it had faster AF and better QC. August 21, 2008
6x9 (Europe)
1 out of 1 found this review helpful
This lens looks great and feels very solid. Taking into account the professional specs and the price of the lens, it seems to be a real bargain. Well, it is almost true... but not exactly so.
But firstly, the positive:
- Image quality is very good, especially when stepping down by at least one f/stop
- It has good bokeh
- Works with the old "screwdriver" bodies, as well as has SDM
Now, the negatives:
- The quality of this lens is very inconsistent. I knew about this before buying my copy, so it did not come as a surprise when I discovered that my lens was a bit "off". In my case one corner is slightly softer than the rest of the image, but it is only noticeable on test shots wide open and is not field relevant. So I decided to keep it and not to go into a gamble with exchange for another copy.
- You may have a strange effect when this lens is focusing spot on in the daylight and is a complete disaster in incandecent or lower light situations. You may even experience this problem to some extent in all light conditions, depending on you copy of the lens. This happens sometimes with my lens set at 16 mm zoom position. My lens shows in some cases FF, and in some - BF, which may be a problem when shooting at large apertures. My SMCP 35 f/2.0, 77 f/1.8 or 50 f/1.4 do not have this problem on my both cameras (K10D and *ist DS), so I explain this phenomena by lens behavior.
- The focusing is quite slow - both with SDM and with the screwdriver. This is not what you would expect from the professional-grade lens. Perhaps this is a price to pay for supporting the SDM-enabled and the legacy "screwdriver" bodies in one lens.
Excellent! August 8, 2008
Chris Cunningham (Lexington, KY USA)
I bought this lens shortly after buying my K10D, and I've been really impressed with it. Sharp with fast and quiet AF, it's turned out to be an excellent lens. The price has dropped about $100 in the months since I bought mine, but I don't care, this lens is just that good.
Great lens June 23, 2008
David Michael Bryson (Lansing, MI United States)
3 out of 3 found this review helpful
A great wide to standard zoom lens. It is fast, sharp, and has an extremely rugged build. It is definitely a large, heavy lens compared to the DA 18-55MM, for example. On the other hand, the weather sealing is evident and the focusing ring is large. The SDM is virtually silent, quick, and silky smooth. Overall this lens is well worth the investment.
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