DXO published their results for the Sony FE 70-300mm F/4.5 5.6 G OSS and it did well against it’s rivals, but it’s not as sharp as the Sony FE 70-200mm F4 G OSS.
“In terms of optical quality alone, the FE 70-300mm F4.5-5.6 G OSS is on par with the best of its rivals. It has good sharpness at the longer focal lengths, though closing down a stop at 300mm to f/8, when light levels permit, improves levels significantly.”
via DXO
