Originally posted by mtux I sold my F70-210 right after I compared it to DA55-300 in terms of sharpness.
in other areas, specially weight, there was no debate, the F was heavier.
I guess that every F70-210, being an "old" lens, already has some history of bumps, drops, and despite being seemingly tank-like in built may have already been suffering from some ailments. Mine, after a CLA, has been delightfully and obviously sharper than my 55-300, and has better contrast too, when provided with a good rubber hood. Though, I still keep my 300 since it's light, has very little resale value, and is handy whenever I need that extra 100mm.