I am looking for an upgrade to my 50D which will complement my 6D, and despite reading every comparison I can find on here and elsewhere on the net I cannot decide which way to go.
The 6D has the Landscape, portrait and school assembly/presentations/concerts, night shots covered...what I am looking for is something for sports - junior athletics, tennis, netball, cricket and action - motor sport, airshows and general aviation spotting.
I do not need to be able to shoot a wren or a sparrow at 25 metres - 99% of my static/flying subjects are much larger than that, so the 1.6 crop of the 7D II is that much of an advantage over the 1.3 crop of the 1D IV.
What I am looking for is faster and more accurate focus than both 50D and the 6D, better IQ at 400-6400 ISO than the 50D, and a higher burst rate rate.
The main lenses I will be using on this body will be the 200F2.8 and Tamrom 150-600, with or without a 1.4x converter.
I have dismissed the 7D, 70D, 5D3 and have narrowed it down to the 7D II and 1D IV
Weight and size of the 1D IV is not an issue as both the 50D and 6D have grips attached.
Locally I can get a 7D II or a low milage used 1D IV for about the same price - though I would then have to add the price of the grip for the 7D II.
Any input/suggestions to help me get off the fence either way would be appreciated.



