I can't seem to find reliable data indicating the market share of DSLRs here in the US between Canon and Nikon. Most that I've talked to have always argued that Nikon and Canon are pretty evenly split. But to be honest, in the past year or so, I almost feel that Canon have a 75% share from my own observations. Where can I find this data?
It is difficult to pin down camera sales for the US only, as Canon and Nikon have many divisions (printers, imaging, instruments) and don't seem to report financial results at a very detailed level).
According to their own data (worldwide):
Canon (fiscal year ending 31-Dec 2012)
Nikon (fiscal year ending 31-Mar 2013)
So based on that one year they are pretty even. Nikon had a poor 2011 due to flooding in Thailand, so it's possible that 2012 was better than average due to deferred sales.