Originally Posted by Richard Lane
Light weight travel lens? Hehe I get concerned about carrying my 70-200mm f/2.8L IS II !!! []
I don't think I can have too muchhands oninput here as my shooting genre is a little different - but maybe a different point of view could help.
I think you could probably get away with the 300mm f/2.8 (without teleconverter) for night football games, you can always crop slightly to get an equivalent frame as you would with the 400mm f/2.8. The IQ with the 300mm f/2.8 and the 1DIV combo is prettystellar so I would be comfortable with some cropping. Or you could always use your 7D instead of the 1DIV to bump your equivalent focal length up a bit.
Personally, I'd go with the 500mm f/4 III. At f/4 it's still pretty damn quick for that focal length and I always find I'm chasing more focal length (bear in mind I'm using the 70-200 on FF). DOF with the 500mm f/4 @ 50m is around 1.8m and the 400mm f/2.8 is around 2m at the same distance. So if it's DOF / bokeh you're concerned about then both lenses are pretty well on par.
It think that would give you the most flexibility in your kit. However I have been at work for 16 hrs already so my brain might not be functioning to its full capacity right now.
Good luck mate, I wish I were in the position to grab asupertelephoto. Instead I have to pay for a wedding and an overseas trip - French alps here we come!. I think I can handle that []
Ben




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