I HAVE THE 70-300/4-5.6 IS NOW ( I HAVE A BUYER FOR IT )
SHOULD I SELL IT AND GET THE 300 F4 L IS (CANT AFFORRD THE 2.8) WHICH ONE HELP !
IS THE 300 F4 IS A LOT BETTER
I HAVE A 70-200 / 2.8.L IS NOW (KEEPING IT ITS MY MAIN LENS)

