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Di: Digitally Integrated Design, is a designation Tamron puts on lenses featuring optical systems designed to meet the performance characteristics of digital SLR cameras.It is the most compact and lightest in the history of fast zoom lenses. Thanks to the revolutionary downsizing "XR" technology employed by Tamron in the development of high-power zoom lenses such as the 28-200mm and 28-300mm, the dramatic compactness that makes this lens the world's smallest and lightest is achieved. Its compactness makes it look and feel like an ordinary standard zoom lens, yet the versatility that a fast constant maximum aperture offers will definitely reshape your photographic horizons.
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Technical Details
- Minimum focus distance of 0.33m over the entire zoom range for 1 - 3.9 maximum magnification- Mechanical design improvements for downsizing the maximum diameter while minimizing changes in zooming torque
- Zoom lock mechanism for convenience in carrying the outfit
- 75 to 32-degrees Angle of view
- f/2.8 to f/32 Aperture
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By RonAnnArbor (Ann Arbor, MI United States)
The standard in Nikon for this focal length used to be the Nikon 28-70 2.8; now it's the Nikon 24-70 2.8. This lens is as good as either of those, at 1/5th the price. It's a fine lens. If you can afford the (very overpriced) professional Nikkor 24-70 2.8 by all means do so. If you are a normal person wanting a great lens at a normal price, there is nothing else better than this lens. The Sigma 24-70 HSM might be comparable, I have not tried that lens.
I have both this lens and the Nikon version. I use them on my D700. I use both of them. I find no image quality difference between the two cameras at all. There is some improved sharpness in THIS Tamron lens when stopped down to 4.0 -- the Nikon isn't as sharp until you stop down to 8.0. There is also some light corner softness in the Tamron that you don't get in the Nikon. That is about where the image quality differences end. The vignetting, bokeh, and depth of field abilities are virtually identical. Where the Nikon excels is in flare reduction and the slightly wider angle at 24. In reality, with a walk-around lens, you don't miss much between 24 and 28mm in real-life day to day shooting.
Physically, the lens is well built. It's noisier than the Nikon in operation -- you hear the whirr as the autofocus does it's business. The Nikon is whisper quiet. As an event-shooter, I don't hear anything from my cameras, so for all practical purposes its a none issue for me,
But where this lens really excels is in the light, easy to carry build. The Nikon D700 is already heavy -- adding another two pound lens on top of that with the Nikon version is a backbreaker for walking around....literally. I find I get right shoulder and lower back pain when using the Nikon lens on my D700 for more than an hour. As someone who shoots thousands of photos over the course of 3 or 4 hours at alumni events, the Tamron is the lens that goes with me every single time. It's light, not intrusive, and has superior image quality.
Image Quality, for me, is what it's all about. And you get that in spades from this light, versatile, high IQ lens.
By L. G. Rozas
So far, so good. This lens its fantastic, even more if you consider the price.
Wide open is sharp, but it shines if you stop down a little.
I read some users complains about focus speed and acuracy, well, in my d90 the focus its just as fast as my 35 1.8 and i didn't notice hunting, yet.
Also, i was really surprised by the size y weight, not too big, not too heavy
Update
Now, after take hundred of pictures, i notice that from 60mm to 75mm 2.8 is a little bit soft, but still usable, at f5 is sharper than my 18-105 at the same focal length and aperture.
Also i confirm the focus is as fast as nikkor 35 1.8
By Sanity Advocate (Houston, TX United States)
I purchased this lens several months ago for my Nikon D700 and after comprehensive testing took it on several photo-trips. To date I've shot almost 2000 images with this lens. The review below is based on the sample of the lens I currently own. Due to possible sample variations other samples may be better or worse than mine.
The pros:
1) This is a very sharp lens at all apertures. Specifically, it is UNIFORMLY sharp across the entire frame at any aperture (with one minor exception noted below and that may be a sample variation). Distortion is controlled rather well at all zoom settings. The lens reaches its peak optical performance by f11 at all zoom settings.
2) Although the lens is not designated as "macro", the close-focusing capability of this lens makes it a good choice for some macro applications.
3) The lens is very well built, light-weight and compact.
4) Considering its current price and outstanding optical quality this lens is an exceptional value.
The cons:
1) At apertures wider than f11 there is a ~ 1mm area of the unsharp focus on the extreme right side of the frame (camera in horizontal position). This is completely gone by f11. I do not consider this an issue, since the area in question is very easy to crop out. I am noting it here for the sake of completeness.
2) At 28mm to 35mm zoom range I encounter frequent AF errors, but since the focus is constant over the entire zoom range, I focus at 75mm, turn off the autofocus and zoom to compose and shot. Otherwise, the autofocus performance is average and unremarkable.
I have taken one star off to account for the two "cons" above.
Summary:
This lens is at least as good as or better than comparable Nikkors at a fraction of price, size and weight. I highly recommend this lens for all general photographic applications.
By Kerry Pierce (Detroit, MI USA)
I bought this lens as a lightweight alternative to my nikkors, to use basically as a walkaround lens. The lens, being mostly plastic construction, is very light, compared to other f/2.8 lenses of the same range. The optics are fine and it is fairly sharp wide open at f/2.8. So, it's a nice lens, especially for the price, but the autofocus just too slow!
I have 2 other Tamron lenses, the 17-50 f/2.8 and the 90 macro. Both of those are AF-D screwdriver lenses that use the AF motor in the body and both are much faster to focus than this lens with the built-in motor, especially in lower lighting conditions. I was really disappointed with the AF performance of this lens and returned it immediately. I usually like Tamron lenses, which are usually a good value, so I sincerely hope that Tamron fixes this lens so that the internal motor operates more in line with the speed of other lenses with internal motors. As it is, I think I could focus manually faster than with using the motor in this lens.
By ERwin (Castro Valley, CA, USA)
Great lens. Contrary to other reviews, auto-focus is very quick on normal mode, but take note that auto-focus will fail when doing live view auto-focus on D5000 when the lens is zoomed to 47mm and above.
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Buy Tamron AF 28-75mm f/2.8 SP XR ZL Di LD Aspherical (IF) with Built-In AF Motor for Nikon Digital SLR Cameras Now
