"Kotsinadelis, Peter (Peter)" wrote:
>
> Michael Fontana wrote:
>
> How fast focussing is the 100-400mm IS? I'm pretty well decided on
> it. I'd like to perhaps use it for sports (non professional) photography
> as well as wildlife. Is focussing fast enough on an Elan 7? Thanks.
>
> Michael
> ----------------------------------------------------------------------------
> --
>
> Hi Michael,
>
> Just back from vacation so I am late in responding. I did not note anyone
> answerong this one.
> I have this lens and was using it yesterday at a rodeo and can say the AF is
> good for action sports.
> I have used it at various professional (and amateur) sporting events and
> have been more than pleased.
> While it is not as fast as the EF 135mm F2 L, nothing else is either. Go for
> it.
> One comment, since it is a 4.5-5.6L you will not be able to blow out the
> background as you could with a F2.8 lens.
> Other than that it is superb.
>
> Peter K
I agree with Peter with the following comment. I personally find the
Bokeh with the 100-400 to be average at best. I think this lens is a
great all around lens but if you're looking to blow the background out,
forget it. I like it and use it a lot, but when I need good background
blur, I do not use this lens. Good background blur at f/5.6 would be
next to impossible with any lens in this focal range. I had a 400 f/2.8
with dynamite Bokeh. My 500 f/4 IS also has great Bokeh, but not as
good as my 400 f/2.8 had. It seems to me that the fatter the lens
opening, the better the background blur, as a general rule. I would
highly recommend this lens. The last time I was at Ding Darling in
Florida, almost every photographer, including the Nikon shooters, had a
100-400 on their shoulder.
Ray Amos
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