1D IV Vs 7D Mark II Vs 1DX With 300mm f2.8L IS USM V1 ?

1DX hands down BUT if you can't stretch that far then my personal recommendation (yes I owned and used the same set up)

1DIV with the 70-200 2.8 mkII AND the mkIII 1.4 extender.

I used this combo (still use the lens set up on my 1DX for majority of race weekends) for race weekends and it never let me down.

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David Stallard wrote in post #18088312
1DX hands down BUT if you can't stretch that far then my personal recommendation (yes I owned and used the same set up)

1DIV with the 70-200 2.8 mkII AND the mkIII 1.4 extender.

I used this combo (still use the lens set up on my 1DX for majority of race weekends) for race weekends and it never let me down.

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That in my honest 'user' opinion is your best bet. if nothing else go for the 70-200 2.8 mkII with the mkIII 1.4 extender, it will go with just about any body, if you can get the 5DmkIII that is a really good compromise - I also use that for racing, really fast AF

Hope that helps even a little

.DAVID.

Oh believe me the 1D Mark IV was a beast with Motorsports, Just lacked in other areas. Thanks for the advice. The 1DX and a 300mm f2.8 Would be my ideal setup but realistically speaking ill probably get a 70-200 to start with. 6k for a clean 1DX and 300mm f2.8L IS is a lot of money. Not a big fan of TC's in general as I had a bad experience with the 70D and 300mm f4L IS a few years back. I'd have to see raw files to judge the quality difference to even consider it.

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