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<blockquote data-quote="yauman" data-source="post: 226923" data-attributes="member: 15418"><p>See my post about 3rd party lens manufacturer - same goes for flash makers - they are handicapped from the get-go because they have to be generic enough to be able to customize for Nikon, Canon etc with minimum cost of adaptation.&nbsp; They are further handicapped in that they have no control over firmware and updates.&nbsp; All they get from Nikon or Canon is the published spec sheet with physical dimensions, voltages, currents, polarity of connectors, signal function call-outs and pin assignments. Nikon or Canon do not need to expand any energy or resource to make it difficult on purpose - it is a difficult engineering problem to design one system to fit many competing systems. If say Sigma decide to only make lenses for only Nikon and no one else, it would be much easier - they will design the optics, the mechanical and electronics from the ground up to meet Nikon specs from the ground up.</p></blockquote><p></p>

[QUOTE="yauman, post: 226923, member: 15418"] See my post about 3rd party lens manufacturer - same goes for flash makers - they are handicapped from the get-go because they have to be generic enough to be able to customize for Nikon, Canon etc with minimum cost of adaptation. They are further handicapped in that they have no control over firmware and updates. All they get from Nikon or Canon is the published spec sheet with physical dimensions, voltages, currents, polarity of connectors, signal function call-outs and pin assignments. Nikon or Canon do not need to expand any energy or resource to make it difficult on purpose - it is a difficult engineering problem to design one system to fit many competing systems. If say Sigma decide to only make lenses for only Nikon and no one else, it would be much easier - they will design the optics, the mechanical and electronics from the ground up to meet Nikon specs from the ground up. [/QUOTE]

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