Buy Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Konica Minolta and Sony Digital SLR Cameras (Model A14M)Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens for Konica Minolta and Sony Digital SLR Cameras (Model A14M) Product Description:
- For digital SLR photography, it provides high image quality in terms of resolution, contrast and flatness of image field
- Designed to confine the changing angles of incidences of light rays reaching the imager within a certain scope
- Peripheral light fall-off is minimized when compared with that of conventional lenses for film cameras
- Complicated mechanisms are built in the compact body thanks to new mechanical artifices.
- The Zoom Lock prevents unwanted barrel extension when carrying the lens/camera combination
Product Description
The AF 18-200mm F/3.5-6.3 XR Di-II is a high power zoom lens made for exclusive use with digital SLR cameras. The lens inherits the qualities and concepts of the existing AF28-300mm F/3.5-6.3 XR Di. It covers a powerful zoom range that is the 35mm film camera equivalent to a 28-300mm* on a digital SLR camera with a APS-C size imager. The lens provides the convenience of handling many photographic scenes and the capability of shooting ultra wide-angle to ultra telephoto shots without changing lenses. Tamron uses three hybrid aspherical lens elements and two LD (Low Dispersion) glass elements to achieve effective compensation of on-axis and lateral chromatic aberrations, a critical factor that enhances the optical quality of digital photography. Systematic countermeasures against ghosting and flare, annoying factors in digital photography, are also adopted with new technologies such as “Internal Surface coatings” and new multiple-layered coating technology for ordinary elements. In addition, the Minimum Focus Distance is 45cm (17.7") so you will be able to enjoy close-up (macro) photography of 1:3.7 at a 200mm setting. Di II Lenses - Designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of the Di products. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm. Key Features: Lightweight and Compact Design for Excellent Potability Flower-shaped Lens Hood Internal Surface Coating to Reduce Ghosting and Flare Dedicated for Digital SLR Cameras Optical System Uses Special Glass and is Optimized for Digital SLR Characteristics in order to Enhance Optical Quality in a
Customer Reviews
Most helpful customer reviews
416 of 422 people found the following review helpful.
By A. C. Sisto
Like a baseball player with a decent batting average, some power, a little bit of speed and fairly good fielding ability, the Tamron 18-200 lens won't be an All-Star any time soon because it does not excel at any one thing. But, like that $500k/year utility infielder, this lens DOES provide a very good all-around value for what it is. Does it compare to a prime lens at either end? Heck, no. Is it a good lens to use when you can't carry a wide choice of lenses with you? Absolutely.I've been using this lens on my 20D quite a bit and have only a few minor gripes: it tends to hunt for AF (especially as you get closer to 200mm), and it's not the quietest lens I've used.An earlier reviewer mentioned that it maxed out at about 160mm. My own analysis shows that it is short of 200mm, but not by that large an extent; I found it much closer to 190. Still, there's no doubt that these zoom lenses with extreme ranges like this have a built-in fudge factor.Another reviewer described the problems he encountered when using two screw-on filters. There aren't too many primes that I've used that will avoid vignetting when using two filters. Heck, my 10-22 can barely handle one extra-slim. As for darkening the image - well, you're adding two more pieces of glass to a highly-complex lens assembly... just asking for trouble.As for the concern regarding blur at longer focal lengths, I highly recommend the use of a tripod. I noticed the exact same thing - blur and lack of sharpness - at lengths over 100mm. Keep the old rule of thumb in mind - if you're shooting handheld, your shutter speed should be no slower than the inverse of your focal length. A 200mm lens on a 20D (or Rebel XT for that matter), is an effective 320mm - I wouldn't recommend shooting any slower than 1/500 at max zoom with this lens - UNLESS you're using a tripod. When I mounted it firmly, I got great shots with no blur.Keep in mind that you get what you pay for here: the convenience of a wide-angle, normal, and moderate telephoto lens in one piece. If you're shooting professionally, or need absolutely perfect images, then carry the three or four lenses that this would otherwise replace in your bag. But if you want one easy-to-use, satisfactory lens, go for this one. It's a jack-of-all-trades, ace-of-none kinda deal.
138 of 140 people found the following review helpful.
By mcenut
I have owned this lens for over a year now and it never ceases to amaze me when I see the photos it produces. Over this last year I have come to learn a thing or two about how to use this lens.1) If you are going to shoot indoors, or in low light, with a long focal length (like 200mm) use a tripod or plenty of ambient light. This lens doesn't have a built in image stabilizer so you are going to steady the lens with the tripod or use a real fast shutter speed to minimize your hand jitter.2) Use a smaller aperture. I have found that my best photos come from an aperture of 8.0 thru 16. These apertures aren't great for bokeh (background blur) but they sure do allow you to take razor sharp pictures.Praise.Focal range. With one lens you are able to take nice wide-angle shots (18mm) and with the twist of zoom ring you have a nice telephoto lens (200mm) Definitely a good walk around lens for the day at the botanical gardens, museum or amusement park.Build quality. This lens gives you a nice solid feel in your hands. Give it a shake and it doesn't make a sound. The zoom and focus rings move smoothly without being sloppy. With a lens this well built you would expect it to be heavy. Not so with this lens, it's quite light (which is something you really appreciate after a long day of carrying it around.)Minimal chromatic aberrations. The lens' three hybrid aspherical elements and two low dispersion glass elements correct for almost all lateral and on-axis aberrations making most of your images optically clear.Size. At it's lowest focal length (18mm) the lens is small enough to fit into a mid size top loading camera bag while still attached to the camera body.Complaint?Well yes, I do have one minor complaint about the lens. Auto focus is slow. How slow? Well let's just say you won't want to try and photograph a two year old on the move. I have found that I can keep fast moving objects in better focus by switching to manual.
130 of 135 people found the following review helpful.
By S. Mingus
I recently purchased this lens for use on my Canon 20D. I was never happy with the lens that came with the camera. I've been very happy with this lens.Pros:- Quality construction. The lens doesn't feel cheap.- Zoom range of this lens is fantastic.- Image quality is great.- Internal focusing makes using filters and hoods a piece of cake- Zoom lock is nice so the zoom ring doesn't turn while stored or carried.- Price. For the money this lens will give you a lot of bang for the buck.Con:- Auto focusing is a bit slow for a moving subject.
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