Originally posted by Anvh You can use FA and other FF lenses on canon FF camera you will only miss the AF and auto aperture
Which 99% of consumers use.
Who cares if Canon users try some Pentax glass? It's market imperceptible in terms of being a sales driver. I wouldn't waste a second of productivity following a flea of a market.
Adapters are kludges, especially if they take away functionality.
I've been trying out a Fuji X-Pro 1 lately and honestly, I'm not really all that impressed. The AF is dead dog slow and the IQ is no better than any other sensor on the market. So what if Fuji has an m-mount adapter announced today? It's not going to improve either and the sensor's mediocrity + manual focus + Leica lens prices is just window dressing. Adapters can be a fun distraction, but realistically you cannot build a market around them, despite Ricoh's attempts. It's not really working save as a tiny niche. And it is precisely because Pentax is a niche that we bemoan the lack of FF and lens variety.