This is a fantastic lens & I'm generally a canon L lens type of a guy. That been said I believe in using the best tool that gets the job done.Build quality is really solid & the addition of VC is great, it's f2.8 constant aperture on Full Frame & it's the only on in the world to date with...

VC works great Silent operation High quality finish Good weight; balances well on 5d Mk11 Amazing image quality

Slight Vignetting Canon didn't make it first ;

REVIEW: Tamron SP 24-70mm f/2.8 VC USD

This highly anticipated lens from Tamron covers the popular 24-70mm range with a fast constant aperture of f/2.8. It is one of Tamron's 'SP' lenses, which denotes that it should be able to produce professional quality results.

Tamron SP 24-70mm f/2.8 Di VC USD (Model A007) Lens

Tamron's latest zoom lens covers the popular 24-70mm focal length span with a fast maximum aperture that remains at f/2.8 throughout the range. The SP 24-70mm f/2.8 Di VC USD is designed primarily for cameras with 36 x 24 mm sensors but, being a 'Di' lens, it is usable with APS-C camera bodies.

[REVIEW-TAMRON SP 24-70mm F/2.8 Di VC USD lens]

The Tamron lens, with an f2.8 constant maximum aperture, is in the category of "standard" zoom for a full frame DSLR. It can be used on a reduced sensor APS camera, where the focal lengths then become 36–105mm.

Tamron SP 24-70mm f/2.8 VC USD Lens Review

Handling and Features Performance Verdict Specification This highly anticipated lens from Tamron covers the popular 24-70mm range with a fast constant aperture of f/2.8. It is one of Tamron's 'SP' lenses, which denotes that it should be able to produce professional quality results.

Good sharpness throughout the range in the centre; Effective Vibration Compensation system; Good value; Good build quality; Moisture resistant construction; Low distortion

Strong falloff of illumination towards the corners at maximum aperture; Drop in contrast at maximum aperture