Used copies of the Tamron SP Di 90mm f/2.8 Macro lens have the best price/performance. The lens is sharp from f/5.6-f/11 with no chromatic aberration. Weighing 418g (14.7oz), the lens is the lightest macro lens I have reviewed in the 90-105mm focal length range. Working distance is comparable to 105mm lenses because the front element […]