graham catley
Well-known member
anyone in a position to compare image quality of the 300 2.8 II and 1.4x against the new 100-400 II at 400mm? The new lens is a pretty light compared to the 300 and considerably smaller for travelling and has the versatility of using anything from 100mm - 560mm with a 1.4 but the 300 2.8 of course has low light advantage but with better ISO performance that is maybe no so essential on a foreign trip when portability may be a more relevant factor -- the 100-400 is being claimed as very sharp throughout but is it as sharp as the 300? its a dilemma!