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Tamron Auto Focus 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Canon EF-S Digital SLR Cameras.
|Price:||$649.00 & FREE Shipping. Details|
- Compact Fast Zoom with VC (Vibration Compensation).
- Fast Constant F/2.8 Aperture.
- For use on APS-C size DSLR cameras.
- 11.4-Inch minimum focusing distance / 1: 4.8 Maximum magnification ratio.
- Internal Focusing.
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Lens Hood Part Number||Flower-shaped hood|
|Compatible Mountings||Canon EF-S|
|Image Stabilization||Vibration compensation|
|Item Dimensions||3.15 x 3.15 x 3.74 inches|
|Item Weight||1.26 pounds|
|Manufacturer Warranty Description||6 years|
|Maximum Focal Length||50 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||17 mm|
|Photo Filter Thread Size||62 mm|
|Shipping Weight||1.8 pounds|
From the Manufacturer
A masterpiece of innovative optical design, this compact, lightweight, high performance standard zoom (26-78mm equivalent) delivers a fast F/2.8 aperture over its entire focal-length range for maximum creative flexibility. To maintain critical sharpness when shooting handheld it includes VC (Vibration Compensation), Tamron’s state-of-the-art, tri-axial image stabilization system. Three compound aspheric elements, special LD glass, and BBAR coatings ensure superb correction, color fidelity, and freedom from flare. A minimum focus distance of 0.29m (11.4 inches ) offers exciting close-up opportunities.
Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm.
Vibration Compensation (VC)
Handheld camera shake is the leading cause of blurry and unsharp pictures. Several leading companies now make lenses with built-in optical image-stabilization systems that sense the amplitude and direction of the shake and compensate by moving optical groups within the lens. Tamron’s exclusive new Vibration Compensation (VC) system that’s built into the Tamron AF28-300mm F/3.5-6.3 XR Di VC LD Aspherical (IF) Macro and the Tamron AF18-270mm F/3.5-6.3 Di-II VC LD Aspherical (IF) Macro lenses performs a similar function, but it executes it much more effectively due to its innovative breakthrough design
- VC delivers blur free - handheld images for incredible results
- VC mechanism employs a three-coil system
- Lens element compensates for vibration using 3-steel balls (making movement quiet & smooth)
- Exceptional images at slower shutter speeds – reduces the need for a tripod
- Bring out contrast to motion & stillness
- Eliminate the need to shoot with a Flash
Aspherical Elements (ASL) Provide the Ultimate in Image Quality and Compactness)
Tamron uses several hybrid aspherical lens elements in many lenses bearing the Aspherical designation. These innovative optics allow us to achieve the ultimate in image quality, and at the same time produce lenses that offer remarkable zoom ranges in extraordinarily compact packages. By perfecting theses cutting-edge advances for series production, Tamron has advanced the state of optical design, and virtually eliminated spherical aberration and image distortion from the high-power-zoom series.Through the effective application of Hybrid Aspherical Technology, one lens elemen tcan take the place of multiple elements without compromising performance. This is what allows us to produce remarkably compact long-range lenses that deliver a uniformly high level of image quality at all focal lengths and apertures.
Extra Refractive Index (XR) glass can bend light rays at steeper angles, thereby decreasing the physical length of the lens while enhancing imaging performance by minimizing optical aberrations. This has allowed Tamron to develop a line of shorter, smaller-diameter, lighter lenses without sacrificing lens speed, and actually upgrading image quality compared to older designs. XR glass is costlier than conventional glass but it yields enhanced optical power distribution, making possible many of the outstanding and innovative lens designs that bear the XR designation. XR glass, with its superior light-bending power, makes it possible to design a short-barrel lens with the same light-gathering ability (aperture value) as a long-barrel lens—even with a smaller lens diameter. By using this principle Tamron has been able to shorten the length of the entire optical system and produce lighter, more compact lenses of the same speed, and also to provide greater zoom ranges in lenses that are much more convenient to carry by hand.
Tamron SP (Super Performance) series is a line of ultra-high-performance lenses designed and manufactured to the exacting specifications demanded by professionals and others who require the highest possible image quality. In creating SP lenses Tamron’s optical designers put their foremost priority on achieving superior performance parameters—they are all designed to a higher standard with little regard for cost constraints. As a result, Tamron lenses bearing the SP designation feature impressive and innovative designs that have established an enviable reputation for excellence among those knowledgeable photographers that demand the very best.
Low Dispersion (LD)
Low dispersion (LD) glass elements in a lens help reduce chromatic aberration; the tendency of light of different colors to come to different points of focus at the image plane. Chromatic aberration reduces the sharpness of an image, but glass with an extremely lowdispersion index, has less of a tendency to separate (defract) a ray of light into a rainbow of colors. This characteristic allows the lens designer to effectively compensate for chromatic aberration at the center of the field (on axis), a particular problem at long focal lengths (the telephoto end of the zoom range), and for lateral chromatic aberration (towards the edges of the field) that often occurs at short focal lengths (the wide-angle end of the zoom range.)
Internal Focus (IF)
Internal focusing (IF) provides numerous practical benefits to photographers including a non-rotating front filter ring that facilitates the positioning of polarizing and graduated filters, and more predictable handling because the lens length does not change during focusing. Even more important, Tamron’s Internal Focusing (IF) system provides a much closer minimum focusing distance (MFD) throughout its entire focusing range. In addition, IF improves optical performance by minimizing illumination loss at the corners of the image field, and helps to suppress other aberrations that become more troublesome at different focusing positions
Zoom Lock (ZL)
Another original Tamron mechanical engineering concept is the Zoom Lock (ZL), a simple convenience feature that prevents undesired extension of the lens barrel when carrying the camera/lens unit on a neck strap..
Top Customer Reviews
After playing with the new Tamron lens for almost two weeks, here's some of my 2 cent comments:
Good News first (wow so many don't know where to begin):
-Great optical performance! All photos taken are really sharp.
-Accurate, consider fast and consistent autofocus.
-Zoom ring isn't cramped or stiff, easy to turn (opposite direction of Canon lens).
-Surprisingly at 17mm I hardly can see any barrel distortion!
-I can't detect any chromatic aberration & Vignette problem. All photos look clean & accurate. But it doesn't mean they are not there. Maybe I need to get my eyes checked. :-)
-Nice weight (lighter than my Canon 24-105L) & feel, will be my new walkaround lens.
-AF is noisier than Canon USM. It sounds like soft "mechanical turning & twisting". Some photographers may find this annoying but I'm perfectly alright with this. It's not too loud & certainly won't disttract your subject or model. In fact, I'm getting used to the sound & feel good knowing my lens is working properly (see below too).
-Manual focusing is easy to use.
-AF is fast & accurate, so you can hardly hear the AF noise except under extreme low light situation (the AF is a bit tad slow & the noise is more obvious).
-Bokeh. I love it!
-The Vibration Control VC feature is also great & I can go down really low & pic still sharp.
-Sharpness of this Tamron lens is at par with my Canon 24-105L. On color comparison, I find Tamron produces a bit more saturate & brighter.Read more ›
The zoom ring comes with a zoom creep lock that works at 17mm, but the rings are stiff enough that you won't need to use it.
There are three things that this lens wasn't so great on. The focus is loud, its not an ultrasonic motor. The VC has the 1 second delay which is not so hot. The VC is also loud, you can hear it take effect.
Overall, this is a fine lens for myself. Those who find the VC delay, or noise, might be turned off by it, so take that into consideration.
It's a very well built lens with a metal mount. Its not pro-quality, but definitely better than any kit lens I've owned. I'd give it a solid 4 out of 5 stars for build quality and design. It's quite a bit thicker than the previous version, but not much heavier. It looks huge on my D80, but its not too heavy so it works well and balances perfect on a D300.
The vibration compensation works very well. It works just as effective as any Nikon VR lens I've owned. No complaints on the effectiveness of the VC system. Some people reported it as loud when the VC motor kicks in, but I found it to be acceptable. Not as quiet as the Nikon VR2 system, but definitely not "loud" either. Others have reported that the VC doesnt kick in as fast as Nikon VR2, and its true (very very slightly) but again, not a problem. You'll be taking your time to take a picture whenever your using VC anyhow, so it really doesn't affect real-world performance.
The lens is very good. It's not quite as good as the previous version wide open at f2.8, but the previous version was so good that you can lose a bit of sharpness and still get fantastic results. With that said, wide open at f2.8 I find it very good for my type of pictures, which are generally of people. If you're into photographing brick walls or textbooks, you may be disappointed. If you're concerned more with getting great pictures, you will be pleased.Read more ›
This lens has none of those problems. I really can't get over how well it performs in low-light situations. I get a lot of keepers at 1/5 of a second. It's really sharp also. I have a 5D Mark II and a few L lenses and I find myself picking up my Rebel and this lens more and more often. If you are considering this lens I recommend it 100%.
Most Recent Customer Reviews
I owned the non VC version for years and loved it. I'm sure this one will be better.Published 22 days ago by Ronald A. Adkins
This is a very good lens for someone who likes the esthletics of a low f-stop with the versatility of a zoom lens. Read morePublished 5 months ago by Steve
I have been using this lens for over a year now and am still so impressed with my photos.Published 5 months ago by carnsk
I have had this lens for a little over two years now and I have had problems with the focus for the last year and half of that time. Read morePublished 5 months ago by Sarah Lieswald
Fabulous lens -- It is now my prime plus given its range and speed at f2.8Published 5 months ago by Terry from PA
Did some shots of the Milky Way here in New Mexico and they came out better than I expected. So far I'm really impressed with this lens.Published 6 months ago by Rafay M Seyal
I have this lens a few years already and I still like it! THankyouPublished 6 months ago by Aliona Kriukova
Perfect lens for low light shoot it exceeded all my expectationsPublished 8 months ago by John Pitre