I actually managed to grab 1 whole hour yesterday at sevenoaks reserve to try out the 1DX on some critters, not great light but I thought I best share the 'duck' pic that you have to take by law with new kit, well its not actually a duck but a Great Crested Grebe but its close enough, these are with the 2x TC on my 300 then really cropped in, I figured yesterday in about 5 mins that I need a 500mm f4... now I just need to go persuade the wife 
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almost a mating dance, almost...
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