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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
|Price:||$925.60 & FREE Shipping. Details|
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Pentax KAF2|
|Included Components||smc DA * 16-50mm F2.8 ED/AL (IF) Lens, Lens Cap,|
|Item Dimensions||3.31 x 3.31 x 3.9 inches|
|Item Display Weight||2 pounds|
|Item Weight||1.25 pounds|
|Maximum Focal Length||50 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||16 mm|
|Photo Filter Thread Size||77 mm|
|Real Angle Of View||83 Degrees|
|Shipping Weight||1.98 pounds|
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This item: Pentax SMC DA* Series 16-50mm f/2.8 ED AL IF SDM Wide Angle Zoom Lens for Pentax Digital SLR Cameras
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Compatible Mountings||Pentax KAF2||Pentax KAF||Pentax KAF2||Pentax KAF|
|Dimensions||3.31 inches x 3.9 inches x 3.31 inches||3.1 inches x 3.7 inches x 3.1 inches||3.03 inches x 5.35 inches x 3.03 inches||2.48 inches x 1.54 inches x 2.48 inches|
|Item Weight||1.25 pounds||1.1 pounds||1.51 pounds||0.27 pounds|
|Maximum Aperture||2.8||3.5 f||2.8||1.8|
|Max Focal Length||50 mm||85||135 mm||30|
|Min Aperture||22||16 f||22||10|
|Min Focal Length||16 mm||16||50 mm||10|
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- 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
Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras
Top Customer Reviews
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.
This lens did not last, been repaired/replaced twice already because it quit autofocusing. Used it from k10 to K5. Changed my star rating from 4 to 2
For Pentax K20D users:
(Older model owners: upgrade already, you're missing all the fun, what are you waiting for? ;-)
I reviewed tons of sites before purchasing this lens. Here the lowdown after some extensive K20D (real world studio with people, not charts) testing:
-"Famous Urban Internet legend" QA issues: Are done and over with. Blast from the (2008) past. All current lenses in stock do not have any issues anymore (in case you heard).
-Sharpness/Focus: Much, much better then lower grade zooms, especially if you stop down an f-stop or two (which you really should anyhow). It really shows all the (detailed) glory of your sensor. Do not settle for a third party lens (Sigma, Tamron, etc.) if you can have the real thing.
-AF: Way more accurate then kit/consumer lenses. Dead-on 95% of the time (versus non * lenses: More like 50%-70%). And in case you're comparing: Yes, it's better than the 17-70mm Pentax.
-A real bargain compared to Nikon/Canon glass: You would have to pay over a grand for the same quality.
-Bottom line: The best Pentax glass you can get other than the (new digital) * primes. Even there, I think you would have a hard time to see a difference.
And yes, I do this for a living (shooting, not reviewing, that is).
I'm just flabbergasted how professional Pentax has become: The Nikon D300 with any glass shoots like a Coolpix in comparison (yes, I own an entire Nikon outfit).
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!!!
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 incandescent 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.
- 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.
+++ UPDATE +++
Finally I have bought a new Pentax K5 last year.Read more ›
Most Recent Customer Reviews
Image quality using this lens is better than a kit lens, but not what I'd expect in a pro lens with a high price point. Read morePublished 10 months ago by John Karapelou
I've waited a long time to get this lens and reason for wait was due to the worries of the infamous SDM issues. Read morePublished 13 months ago by W Y MO
As sharp as I need it to be. Great zoom range for the events (on stage) that I need, plus having f/2.8 throughout, is ideal.Published 13 months ago by PHILIP D LANUM
The lens is very good, the price is good, send quickly!！ Is a trustworthy seller！！！Published 16 months ago by crr1972