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

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

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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Category: Digital Camera
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Digital product summary information

Manufacturer: Pentax
Release Date: 2007-08-15
Model: 21650
Product 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
Accessories:

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

Digital camera Review: Looks and feels solid. Nice bokeh. Wish it had faster AF and better QC.
Summary: 4 Stars

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.


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

The smc PENTAX-DA 16-50mm f/2.8 ED AL[IF]SDM wide angle zoom lens delivers the highest level of optical quality and includes SDM technology for fast, accurate, quiet focus. Bringing together advanced optical technologies, including aspherical elements, special optical-glass elements and original lens coatings, these new interchangeable lenses are superior to any existing lens series in terms of contrast, clarity and edge-to-edge sharpness.
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