Roger Cicala over at LensRentals has been doing extensive MTF tests on lenses to figure out the landscape of optical quality in the camera industry. One of his latest findings may be a surprise to many: the best 35mm lens on the market optically is one made by Tamron. Cicala says he went into his MTF test of the Tamron SP 35mm f/1.4 Di USD lens expecting it to be “pretty good at an excellent price.” The lens is a…