It does not match reality yet. I own a wildlife photography day tour and workshop business and I too have seen Sony come on strong among my clients over the past couple of years. Prior to this, Nikon and Canon systems were all I saw on my tours. This change in the systems my clients are using caused me to get a Sony a9, so I could learn and speak these clients' "language" while on tours with them. Now that Sony has a 200-600mm and 600 f/4 available it may cause more wildlife photographers to make the change that would not do so before these lenses became available. The Sony a9, and soon the Sony a9II, are and will be very capable wildlife photography cameras as will be the a7RIV (very much in the same league as the Canon 1DXII and 5DMIV). My clients who shoot Sony (and use to shoot Nikon or Canon DSLRs) like mirrorless and the advantages it brings to the table over DSLRs (e.g., no blackout EVF, WYSIWYG exposure through the EVF, being able to shoot video through the EVF, AF points that span almost the entire frame, AI AF tracking capabilities). I have shot Canon for a long time and I love the 1DxII and 5DIV, but I also see the future in what the Sony a9 brings to the table in a mirrorless body now that I have been shooting one for several months along side my 1DxII and 5DIV. The AI AF tracking makes getting shots like those below almost easy compared to what it takes using my 1DxII. I do believe Canon will soon bring a mirrorless camera to market that will rival the Sony a9/a9II, but if they falter I do wonder if what I have seen recently among my clients does not continue to pick up steam. I know I will get the Sony a9II if Canon does not bring a true high-speed, action mirrorless to the market within the next couple of years.
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