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Canon EF 70-200mm f/2.8L IS II - or - Canon EF 100-400mm f/4.5-5.6L IS II

Started Jan 9, 2016 | Discussions thread
jitteringjr Veteran Member • Posts: 3,608
Re: Canon EF 70-200mm f/2.8L IS II - or - Canon EF 100-400mm f/4.5-5.6L IS II

I'm really battling over this too.  I have the 70-200/4 IS and there are times I want faster and times I want longer.  However unless I hit the lottery that I don't play, I wont be able to afford both the 70-200/2.8 II and 100-400 II and I would like to keep the 70-200/4 IS for the light weight needed times.

So for ~ $2200, I could get the 100-400 II and keep the 70-200/4 IS.  Or for about the same money, I could sell the 70-200/4 IS and buy the 70-200/2.8 II and both the 1.4 and 2.0X TC's.  Or for less I could skip the 2x TC and just crop the difference from 280mm to 400 equivalent.  I would allow me to keep the f4 shutter speed.  How well is the AF with extenders with the 70-200/2.8 IS for outdoor sports in better light?  Clearly it's not going to be as fast as the 100-400 II, but would it be adequate in outdoor sports uses?

The 70-200/2.8 IS II with a 2x tc will not be as sharp as the 100-400 at 400, but the 100-400 can't do 2.8.  I just need to decide which is more important to me.

 jitteringjr's gear list:jitteringjr's gear list
Canon EOS 7D Canon EF 50mm F1.4 USM Canon EF 50mm F1.8 II Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM +9 more
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