Skip wrote:
> The biggest advantage of a 70-200 IS f2.8 would be it's
> ability to be used with a 2x teleconverter,
I assume you mean "used with the 2x extender *hand-held*," since there's
currently nothing keeping anyone from attaching a 2x converter to this lens.
Regardless, I'm not clear on why one would want to use a 2x converter on this or
any zoom--the loss of image quality is noticeable enough with the EF 2x extender
on a 300/2.8L; surely it must be even more significant on a zoom lens. And there
are the size and weight issues you raise (re: adding IS to the 70-200/2.8L).
It seems to me that if someone needs to get to 400 mm and the Big White is too
costly, the next best option would be the 200/2.8L or 300/4L and one of the
extenders.
fcc
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