My limit is not real firm at $1,500. I think I can buy a refurbished version 2 70-200 f2.8 for $2M and a converter for a total of $2,500 and I was planning on selling the version 1. I have had good luck with one refurbished lens a 17-55mm purchased last year, but it was a much smaller investment in comparison.


Your example of aperture was great!. If i did the math correctly this would give me a "reach" of 450mm (1.4 X 200mm x 1.6) on the 7D. With out the converter I would be at 320mm (200mm x 1.6).


The 75-300 in reading Brians review seems like a great lens as well, giving me a "reach" of 480mm.


So I think either of these would add between 130mm and 150mm which should be a nice improvement over the current 70-200 alone.


Would the 75-300 offer the better IQ over the 70-200 version 2 with 1.4 converter? Or is it too close to say.


The 100-400mm lense seems good but as you said is lacking the weather sealing and is getting old. Plus is seems like a huge lens when extended.