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Old Apr 13, 2010, 3:55 PM   #1
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Default Which Lens?? SAL-2875 or SAL-2470Z

I was curious of peoples opinions. I know which lens is better the Carl Zeiss 24-70 but how about the new Sony 28-75 f/2.8.

Is it worth paying a extra $800 for the Zeiss? Can you really notice a difference?

Thanks!
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Old Apr 13, 2010, 4:24 PM   #2
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The Sony Zeiss 24-70/2.8 is better than the Tamron/Sony 28-75/2.8, but not a lot.

See
Sony 24-70mm f/2.8 ZA Carl Zeiss Vario Sonnar T* SAL-2470Z (Tested)
Tamron 28-75mm f/2.8 XR Di LD Aspherical IF SP AF (Tested)

That is, unless you're shooting with a 'Full Frame' dSLR like the A900 or A850. Then, the Sony/Zeiss is clearly superior.
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Last edited by TCav; Apr 14, 2010 at 9:24 AM. Reason: Added caveat for FF.
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Old Apr 14, 2010, 12:10 PM   #3
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I dunno... I have yet to see any tests showing good image quality from that Tamron at 24mm. :-) Of course, the same could be said of the Sony/CZ at 75mm. LOL

Personally, I wouldn't want to start out at 28mm for a general purpose walk around zoom (as 24mm is borderline for many purposes, as you don't always have enough room to back up to get what you want into the frame), especially on a camera with an APS-C size sensor.

Here's a lens review of the Sigma 24-70mm f/2.8 HSM (not the older non-HSM version) that you want to look at. It compares this lens with the Sony/CZ 24-70mm f/2.8, Canon 24-70mm f/2.8L and Nikkor 24-70mm f/2.8 lenses (with tests of them on cameras using APS-C and full frame sensors). The Sony/CZ tested the best in most areas, followed by the Nikkor, and then the Sigma (with the Canon trailing the pack by a bit more). But, the Sigma was still pretty good (you're splitting hairs between most of the top 3 in the tests performed, with the Canon not doing quite as well as the others).

http://lenstip.com/172.1-Lens_review...roduction.html

So, you may want to look at the new Sigma, too (especially if you value the 24mm end of a lens, since you wouldn't get that with the Tamron 28-75mm f/2.8 lens you're looking at).
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Old Apr 14, 2010, 12:35 PM   #4
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24mm is 14% wider than 28mm, but 75mm is 8% longer than 70mm.

I'm a medium telephoto kinda guy anyway, so I'd go with the Tamron/Sony. I'm also cost conscious, which is another reason I'd go with the Tamron/Sony. And on an APS-C dSLR, I just don't think the extra cost buys very much.
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Old Apr 14, 2010, 12:42 PM   #5
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I agree with Jim about 24mm being borderline for the wide end. I use the Minolta 28-75 f/2.8D and I am totally satisfied with the IQ of this lens. I use it more then any other lens I own, but sometimes the rooms are to small to fit everything into the frame. You just cannot back-up far enough before hitting the wall. 24mm is much better when it comes to indoor shooting, especially shooting adults, with small kids 28mm will usually work.
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Old Apr 14, 2010, 6:22 PM   #6
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For indoor home use, I like my Tamron AF 20-40mm F2.7-3.5
I don't really need the reach at home.
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