Allan Weitz (Click here) tested the new Tamron 24mm and 35mm FE lenses and concluded:
As the accompanying photographs clearly illustrate, the close-focusing ability of these wide-angle lenses greatly expands the creative possibilities of whatever your subject matter may be. Both display a bit of vignetting at wide aperture, which diminishes as you stop the lens down toward f/8. And while these f/2.8 lenses may not be speed queens, they are sharp—very sharp. Autofocusing was fast and accurate, though in my opinion, a bit noisy for video applications. This might prove to be a deal breaker for potential video-oriented consumers.
Dan Watson also tested the new lenses:
All links to the new Tamron FE primes:
Tamron 20mm f/2.8 at Adorama, FocusCamera and BHphoto.
Tamron 24mm f/2.8 at Adorama, FocusCamera and BHphoto.
Tamron 35mm f/2.8 at Adorama, FocusCamera and BHphoto.