JD750 wrote:
Ha ha very true. Always difficult the future, to predict.
My guess is the 50% decrease will happen way before 2021.
2021 is only three years away. I would think that existing Canikon lenses in use would keep them on top longer than that .... people don't like to throw that kind of value away, and if there were any truth in the Fujifilm prediction, there would be little "secondary" {used} market in them.