went out this morning with the 200-400. God I'm tired! It sure does work fine with the 1.4x on it. this guy was far away, and even at 550mm this is cropped. This shot would have been easier with a tripod: someone told me about an osprey nest in Port St. Lucie, and I found this osprey building a nest. Too bad I overexposed by 1/2-3/4 a stop I printed an 8x10 of this for my dad: I'll go back in the afternoon, it was getting too hot to lug that big rig around. I need a nap.