The advent of digital SLRs requires optimum lens performance and therefore the very latest optical technology has been incorporated in the production of the new Macro 50mm f/2.8 EX DG. This ideal standard lens sets the benchmark for digital SLR cameras.
The new advanced lens design corrects various aberrations. This macro lens is specially coated to get the best color balance while cutting down ghost caused by reflections from the digital image sensor. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. Read the whole test here