Third party lens manufacturers have recently pumped up their game with improved optics and premium construction. So far, we have noted this in Sigma Art and Sport series lenses. Now Tamron seems to have woken up to the competition with the 35mm f/1.8 and 45mm f/1.8 SP-series lenses. We have the SP35mm f/1.8 Di VC USD on our test bench. Let us see if Tamron can unseat Sigma in … [Read more...]