I am contemplating on selling my 100-400 and getting the 70-200 f2.8 IS mark 1 (second hand). I have not used the 100-400 very much at since i bought it. I thought I would use it more but it has not been the case. But when I do use it, i love it! 2 years back I used it during the F1 and late last year I used it again with great results (capturing birds!). I love the reach and I don't mind the weight.
Now, I may have an option to sell it and get a 70-200 f2.8 IS mark 1 - Should I do it? I am thinking the range is a bit more useable, though it probably may not be a daily lens? I was initially thinking to get the 24-105 to go with my 100-400 - may be this is still the better way? If i get the 70-200, I may get the 17-40 instead of 24-105. 24-70 is out of my budget range.
Any suggestions or recommendations? I did read that 70-200 on a 2x converter may not be that sharp and fast (focus) when compared to 100-400.
Your input is valuable, I have got till sunday night (3rd) to make up my mind.
Thanks in advance.
Have a good day.