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07-18-2010, 11:29 PM   #1
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Any idea why Tamron 28-75mm f/2.8 is about $110 higher then Sigma 28-70mm f/2.8?

The main factor i could see is that Tamron offers 6 years warranty and Sigma offers 3 years.

But supposing they are competing in the same consumer range, is there anything else about the Tamron that gives it a $110 premium?


Last edited by Reportage; 07-19-2010 at 02:28 PM.
07-18-2010, 11:41 PM   #2
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The Tamron 28-75mm received a 5 stars rating for price/performance by www.photozone.de, and a solid review by www.slrgear.com.

www.slrgear.com compared the Tamron AF 28-75mm f/2.8 SP XR and Sigma 28-70mm f/2.8 EX DG: "Sigma has two lenses in this particular range available for about the same price and weight as the Tamron. Again, we haven't tested either yet, but readers give the 24-70mm good marks for build quality, image quality, and bokeh (rendering of out-of-focus elements in the scene), but readers were divided over its wide-open sharpness. The average user rating was 8.14 out of 10 points" (compared to 8.29/10 for the Tamron).

An alternative Sigma AF 24-70mm f/2.8 EX DG HSM (DX) was reviewed by www.photozone.de: the price/performance rating was 3.5 stars.

Hope that the info will assist.
07-19-2010, 12:09 AM   #3
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a hundred plus $$$ difference is not exactly the same price imo.

I think if Sigma added the HSM feature to the 28-70, can be considered close in price but could give the 24-70 a run for the money in term of value.
07-19-2010, 01:47 AM   #4
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The prices of the lenses may vary from country to country. For example, in Australia, the prices are different:
Sigma Lens 24-70mm F/2.8 EX DG Macro (filter diameter 82mm) AU$707
Tamron SP AF 28-75mm F2.8 XR Di LD Aspherical (IF) Lens AU$640

Note however that there are 2 models of Sigma lenses:
Sigma Lens 24-60mm f/2.8 EX DG AU$458

Simply, in Australia, the Tamron 28-75mm is cheaper than the Sigma 24-70mm, but more expensive than the Sigma 24-60mm.


Last edited by hcc; 07-19-2010 at 01:49 AM. Reason: Typos
07-19-2010, 11:02 AM   #5
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The Tamron used to be about $100 cheaper in the US; price went up about the same time lots of other prices went up. I think the Sigma is probably discontinued - does't show on their current list of standard zooms - and stock is just being cleared out.

Last edited by Marc Sabatella; 07-20-2010 at 09:56 AM.
07-19-2010, 11:36 AM   #6
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No offense, but the OP sounds like someone trying to cheap a seller down at a yard sale.

It's $100 more, by what you say. These kinds of things don't really require analyses and explanations.
07-19-2010, 02:31 PM   #7
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QuoteOriginally posted by Marc Sabatella Quote
The Ttamron used to be about $100 cheaper in the US; price went up about the same time lots of other prices went up. I think the Sigma is probably discontinued - does't show on their current list of standard zooms - and stock is just being cleared out.
I see. Thanks, so chances are a HSM version replacement indeed may be appearing.
07-19-2010, 02:50 PM   #8
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QuoteOriginally posted by Marc Sabatella Quote
The Ttamron used to be about $100 cheaper in the US; price went up about the same time lots of other prices went up. I think the Sigma is probably discontinued - does't show on their current list of standard zooms - and stock is just being cleared out.
exactly, Sigma was discontinued quite some time ago, - I got mine last year, new, on clearance from Prodigital2000, for USD $160 ($179.99 - $14.40 M$ Bing cashback - 3% cc cashback) - that is way more than $100 cheaper than Tamron.

07-19-2010, 03:26 PM   #9
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The Tamron seems to have a better reputation for IQ, as well. I have and use one on my D700, and it's good enough that I think I won't upgrade to the Nikon 24-70/2.8 despite having the cash to do so.
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