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Comment: This item is very good condition.The one which comes out in a picture is everything for an attachment.There is no balsam separation. There is no moisture/fog on inside of the lens.
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Pentax 16-45mm f/4.0 SMC PDA ED AL Zoom Lens for Pentax and Samsung Digital SLR Cameras

4.7 out of 5 stars 39 customer reviews
| 7 answered questions

Price: $565.19 & FREE Shipping. Details
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  • Designed for proprietary PENTAX Kaf Mount
  • Extra-low Dispersion (ED) glass lens for superior sharpness and color correction
  • Responsive Quick-Shift Focus System allows instant shift from AF to MF
  • Image circle is designed to match the CCD used in PENTAX digital SLRs
  • Convert focal length to 24.5mm-69mm with *ist D (optional)
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This item: Pentax 16-45mm f/4.0 SMC PDA ED AL Zoom Lens for Pentax and Samsung Digital SLR Cameras
Customer Rating 4 out of 5 stars (39) 5 out of 5 stars (29) 4 out of 5 stars (84) 5 out of 5 stars (119)
Price $565.19 $583.76 $396.93 $140.60
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Another Deal Site Amazon.com Amazon.com Amazon.com
Compatible Mountings Pentax KAF Pentax KAF Pentax KAF2 Pentax KAF
Dimensions 2.83 inches x 3.62 inches x 2.83 inches 3.1 inches x 3.7 inches x 3.1 inches 2.8 inches x 4.41 inches x 2.8 inches 2.48 inches x 1.77 inches x 2.48 inches
Item Weight 0.78 pounds 1.1 pounds 1.03 pounds 0.27 pounds
Lens Zoom lens fixed-zoom Zoom lens Prime lens
Maximum Aperture 4 3.5 f 4 f 2.4
Max Focal Length 45 mm 85 300 mm 35 mm
Min Aperture Information not provided 16 f 32 22
Min Focal Length 16 mm 16 55 mm 35 mm
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Product Description

pThe Pentax smc P-DA 16-45mm F4.0 ED/AL is recommended for use with digital cameras. It features a 3x zoom ratio with focal lengths covering ultra-wide angle to normal ranges, incorporates a high-refraction extra low dispersion (ED) glass element to produce a high-resolution, high-contrast image with true-to-life color rendition, and aspherical lens elements to help transmit the light more efficiently through the lens to the focal plane. The smc P-DA 16-45mm F4.0 ED/AL is well-suited for advanced amateurs and professionals./p

Product Information

Product Dimensions 3.6 x 2.8 x 2.8 inches
Item Weight 12.5 ounces
Shipping Weight 1.1 pounds (View shipping rates and policies)
ASIN B0001DBZKK
Item model number 21507
Customer Reviews
4.7 out of 5 stars 39 customer reviews

4.7 out of 5 stars
Best Sellers Rank #1,990 in Camera & Photo > Lenses > Camera Lenses > Digital Camera Lenses
#9,859 in Camera & Photo > Camera & Photo Accessories > Digital Camera Accessories
Date first available at Amazon.com June 17, 2003

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Top Customer Reviews

I was one of those holdouts that carried lots of prime lenses, disdaining zooms as "a compromise". No doubt, I missed some fine lenses because of this.

The lens that sold me on zooms is this lens, the 16-45 f/4 Pentax. The lack of distortion, the contrast, the fine color control, all finally convinced me that a zoom can perform some of the functions of a prime.

I've been using this lens for a while. In my studio, the 50mm primes have become the main portrait lenses with the digital cameras. But now, I'm not afraid to use a zoom lens on a job. A big step for me!

It extends quite far when zooming, a fact I don't like, and for those who care, the on-camera flash is blocked by the lens hood (I use studio strobe, so it's of no import to me). As a modern lens, it has a polycarbonate barrel (they don't seem to be inclined to make zooms in the Lmited series. Too bad).

If I could use it on the film cameras, I probably would. No aperture ring means it's definitely meant for the current cameras.

Despite all that, I highly recommend this lens. It's a great "walk around" lens, going from very wide to moderate telephoto (remember, it's for the APS-C sensors). Image quality is astounding to an old woman who loves primes, and even for a lens in general it's right up there.

If you're faced with the choice of the kit lens or this lens, take the 16-45. If you are serious about your craft, or you make a living at it, it's well worth the price!
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This lens will be one of Pentax's classics, I think. There's nothing very sexy about it. It uses the old Pentax screwdriver-in-slot AF (as opposed to their new in-lens HSM), its maximum aperture's only f/4, and its zoom range ends at an odd point, 45mm (67.5mm equivalent on Pentax DSLR's) -- a bit short of traditional portrait length. It lacks the build quality of Pentax's premium DA* lenses. It isn't weatherproof.

But at this price point it's a gem. The build is decent, and by using plastic instead of metal, putting the AF motor in the camera rather than in the lens, limiting the aperture to f/4 and the zoom range to 3X, Pentax kept the lens light and small. It's not expensive, it has a constant aperture, autofocus is fast and accurate, and (most important) it's optically excellent.

I already have the Pentax DA* 50-135/2.8, a beautiful zoom, and thought of buying the matching DA* 16-50/2.8, but I was put off by reports of poor quality control in the 16-50. So instead (and for half the price) I bought a 16-45. When it arrived I tested it by photographing a tabletop still life, including a test pattern, with my Pentax 21mm, 31mm and 40mm Limited primes at all apertures from f/4 through f/16, then making the same photo with the zoom at the same focal lengths and apertures. In almost every case the 16-45 matched the primes for center focus and sharpness, even at f/4.

Yes, the primes are better -- they have better corners, less vignetting, more overall contrast, an indefinable "snap" that gives the primes what I think of as the Pentax Look. And yes, the zoom does have an optical flaw: blue/yellow fringing where bright and dark areas are juxtaposed. (Seldom a problem, but it's there.) I'm hanging on to my primes.
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Ditto Dana G's review. I migrated from a pretty extensive Nikon film system, and have used all kinds of other brands of film camera equipment, either on assignment or as a community college photo instructor during the 70's and 80's. I tried a variety of zooms, including varifocals with ELD glass. They were visibly softer than their equivalent single-focal-length counterparts. I noticed this after I had spent a long time using one particular varifocal. One day I switched back to a prime and when the prints came in, WOW! You could even tell with a casual glance at a 3X5 proof, that there was a huge difference. And the wide angle range in those 1970'5 and 80's zooms alway seemed extra soft and distorted. So I just gave up on zooms until I experienced digital.

I'm not one of those people who photographs charts. But I've a LOT of experience looking at real world images. In fact, as long as the lens seems to be working I don't really pay attention to it. However, in this case, I was shooting some photos of rocks along the Maine coast, from a tripod, and I decided to try to use a few Pentax prime lenses--a 40mm SMCP DA 2.8 and the Pentax FA 50mm 1.4--just to see if zooms had improved. All shots were in the 35-60 mm range, around f5.6-f8. When I uploaded these images into Photoshop, I was flabbergasted. The 16-45 mm gave nicer color and was at least as sharp as the two primes. Since then, I've had occasion to compare it against my Pentax DA 14mm 2.8, and I haven't noticed any real-world difference at the wide range either. But it's the fact that, if there were a difference, I would have to look really, really hard to see it that impresses me!

I find that I use the !6-45 more than any other lens that I own. I purchased it as an "upgrade" from the kit lens.
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I bought this lens for my 35mm pentax camera, since I'll be buying one of the dslr bodies sometime. It is fantastic: very very sharp and with great saturated color. On par, sharpness-wise with my Zuiko (50mm f1.4 & f1.8, 85mm f/2) and Nikon primes, but with better color! The contrast is good as well, there are rumors that the lens underexposes a bit - perhaps it does, but that works well with film.

On a film camera, there's vignetting when you zoom wider than 21mm - but that's a nice special effect, a sort of semi-fisheye at 16mm. Also, using the supplied lens shade isn't a great idea when shooting with 35mm film cameras, as the vignetting starts early.

Overall, this is a super lens, the best zoom I've owned.

11/2007: I've been using this lens with a K100D with great results. The tone is if anything more concentrated on a digital body - though for some reason the slight underexposure trend does exist with digital but not film. The lens has decent close focus ability - your shots of kittens and flowers come out awesome!

I recently bought the 43mm Limited, and while it has greater resolution and tonality, and does better in low light, on a photographic (rather than pixel peeping) level the 16-45 is in the same league. I still highly recommend this lens as the best medium zoom value that Pentax offers.
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