“ Forgot to answer your question though. Just purchased the new Sigma 30mm f/1.4 Art to pair with my Canon 70d. Loving it! Originally purchased the new Sigma 50mm f/1.4 EX DG HSM, but I decided I needed something shorter for indoor photos (for my crop sensor). The thing was built like a beast and was beautiful--but HEAVY! I'm still learning the art of focusing with wide open aperture, so fast lenses are a double edged sword unless you really know what you're doing (just thought I'd throw that out since many others like me probably don't realize the technical issues that come with shallow DoF)... ”