The Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF) is a good value fast standard zoom lens for APS-C cameras, offering a constant aperture of F2.8 and covering an effective focal length range of 26-75mm. Optical construction comprises 16 elements in 13 groups, and at its minimum focus distance the 17-50mm gives a maximum reproduction ratio of 1:4.5 - not 'true' macro, but usefully close nonetheless. Tamron also makes a newer image-stabilised version of this lens for Canon and Nikon cameras.
Tamron SP AF17-50mm F/2.8 Di II LD Aspherical (IF) Lens
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- 17-50mm focal length
- 25.5-75mm equivalent focal length on APS-C cameras, 27.2-80mm equivalent focal length on Canon APS-C cameras
- F2.8 constant maximum aperture; F32 minimum
- Micromotor-type AF motor without full-time manual focusing
- 67mm filters
- 0.27m/10.63" minimum focus
- Available in Canon EF, Pentax KAF, Sony Alpha, Nikon F (DX) mounts
|Lens type||Zoom lens|
|Max Format size||APS-C / DX|
|Focal length||17–50 mm|
|Lens mount||Canon EF, Pentax KAF, Sony/Minolta Alpha, Nikon F (DX)|
|Number of diaphragm blades||7|
|Aperture notes||circular aperture|
|Special elements / coatings||2 hybrid aspherical elements 1 LD (Low Dispersion) glass element 1 XR (Extra Refractive) element|
|Minimum focus||0.27 m (10.63″)|
|Full time manual||Unknown|
|Weight||430 g (0.95 lb)|
|Diameter||74 mm (2.91″)|
|Length||82 mm (3.22″)|
|Zoom method||Rotary (extending)|
|Filter thread||67 mm|
|Hood product code||flower shaped hood|
Excellent Bang for Buck
When I bought this lense, I was still considering buying other lenses to compliment it, but soon realised that short of buying exotic primes or ultra-wide angle lenses, this lense covered almost all my photography needs.It is a very good alternative to the 17-55 lenses in Nikon and Canon's repertoire at about a third of the price, and it produces stunning results for the price. It's very sharp across the frame when stopped down to about f/5.6 but even at f2.8 it produces very sharp images in ...
I say this is the sharpest zoom, and probably the sharpest LENS I have ever tested, at least when at f4 or lower. Contrast and bokeh are nice too, even at 2.8, it fits perfect with K-5, autofocus works fine and quite fast and, yes, it's noisy, but no one died so far because of this. One more thing...it costs about 40% of Sigma 17-50mm, f/2.8 Problems: Plastic body looks cheap...
Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical (IF)
This is a solid performer with good contrast and color rendition, resolution is impressive wide open and by f4 is outstanding. Focus speed and noise are more than acceptable. The most impressive characteristic I noticed straight away, is the superb control of flare, or almost totally absent at wider apertures when shooting into the sun. This is quite exceptional compared to any lenses I have used and very desirable for landscape work. Problems: I don't know if it is just my copy, but I have ...
Great Optically FF at apertures F5.6 or above at under 3 mtrs
Great Optically Problems: Quirky AF problem under 3 mtrs at F5.6 or above
Understanding Maximum Aperture by Tamron
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Tamron USA, Inc. Six-Year Limited Warranty (Six-Year Limited Warranty Valid in USA Only)
Only Tamron lenses imported officially by Tamron USA, Inc. and distributed by authorized Tamron USA, Inc. dealers carry a Six-Year Limited USA warranty.
DPReview GearShop is an authorized Tamron dealer in the United States.