Camera Labs

Tamron have the "VC" benefit to play on though. If the lens is decent optically, I think the addition of VC will swing a lot of people away from native lenses.

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.

Of course: This is the added benefit for the Tamron.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

Lensrentals have quickly tested the MTF of the Tamron against the mk1 Canon, and the Tamron has the advantage.

http://www.lensrentals.com/blog/2012/04 ... 0-mtf-data

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.

Good catch, thanks for the heads-up, popo!
Sounds promising, esp. the part about the (minimal) variance of three tested copies.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

popo, thanks for the link! It looks like Tamron might well be a valid choice for Canonistas looking for a lens in this range, given the projected price of the 24-70mm 2.8 II. As Thomas indicated, however, Nikon shooters are not paying so much more to get a Nikkor 24-70mm 2.8, so the choice is not so clear. It will be interesting to see real data and images from the Nikon-fit version.

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Canon 7D/5D/40D/1D2N; Nikon F6, FM3A, & Coolpix A; Canon 40mm Pancake, 135L, 50L, 35L, pre-II 50mm 1.8, 100mm 2.8L Macro, 10-22mm EF-S, 28-135 EF, 400mm 5.6L; Nikkor 50mm 1.2 AI-S, 50mm 1.4G, 50mm 1.8D, 16mm 2.8D Fisheye, 180mm 2.8D, 100-300mm 5.6 AI-S; Tokina 17mm & 100mm 2.8 Macro

I hope to pit the Tammy against the Nikon as soon as it is available. On a D800 naturally to give you the best insight in how these lenses perform

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

Another review from ephotozine on a Canon 5Dii.
The charts look pretty good, albeit corner-performance at 70mm makes a huge jump from f5.6 to f8.0. The other issue seems to be a strong light falloff of 2.5EV at 70mm.
Would be interesting to see how this baby performs on a D800...
Oh, and btw.: Prices are gravitating towards 1100 EUR (incl. 19% VAT) whereas the Nikon is hovering around 1500 EUR.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

The first online-dealer claims that the lens will be available in "2-3 days".
Let's see...

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

And the next one says June 14th

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

ThatNikonGuy did a review of this Tamron and it seems quite good. Not quite as good as the Nikon/Canon lenses, but close enough for most people.

The VC looks great, and for anyone who also does video, that would be a must.

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Cameras: Canon EOS Rebel T2i, Canon S90
Lenses: Tamron: SP70-300mm F/4-5.6 Di VC USD, Canon: EF-S 18-55mm f/3.5-5.6 IS Lens, 75-300mm f/4.0-5.6 III, and EF 50mm f/1.8 II
Retired camera: Fujifilm Finepix s700

Called my dealer today: Now he says End of June

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

Lens is on its way! Will arrive tomorrow.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

Nice Thomas! I am really interested in how this lens compares in terms of image quality to the Canon/Nikon version. The addition of VC is the main draw to this lens. I look forward to hearing your opinion

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Camera: Canon 550D with battery grip
Lenses: Canon 24-105mm f/4L, Canon 50mm f1.4, Canon 18-55mm, Tamron 70-300mm,
Accessories: Manfrotto 055XPROB with 808RC4 head, Canon 430ex II speedlite, Lowepro Nova 180AW and Lowepro Pro Runner 450AW

Oh that is so lame, every hot girl who can aim a camera thinks she’s a photographer -Stewie Griffin

No comparison to Canon equivalent unfortunately. But will pitch it against the Nikon 24-70/2.8G.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses

Yes I realise that Thomas. I understand your comparison will be against Nikon as that is what you have used A comparison to the Nikon version will allow me to subsequently compare it to the Canon version though.

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Camera: Canon 550D with battery grip
Lenses: Canon 24-105mm f/4L, Canon 50mm f1.4, Canon 18-55mm, Tamron 70-300mm,
Accessories: Manfrotto 055XPROB with 808RC4 head, Canon 430ex II speedlite, Lowepro Nova 180AW and Lowepro Pro Runner 450AW

Oh that is so lame, every hot girl who can aim a camera thinks she’s a photographer -Stewie Griffin