Originally posted by biz-engineer I don't know if your comment is related to what I wrote or unrelated. Ok, so, how is that related to cost of R&D ? Do you mean every one should do MF camera priced 5K ?
There no reason to think 5KMark IV or Pentax K1 to have very different cost in R&D. If I was to guess, I would suspect K1 to cost more in R&D because it is the first FF body of Pentax for years. For Canon it was just a different mix of technologies to make a new variation of what they have done for years. Maybe Canon spent much more, but that would be because they could and that may be also mostly on marketing or stuff like that. And I think the return of investment is there.
Manufacturers could have a single model, have unique price and be done. But usually you make more money by going on with market segmentation. People like to have the cheap, almost as good one or very expensive a bit better one. The whole FF vs APSC, great AF, bad AF, can I do 3 frame exposure braketing or 5 or 7 and so on are based on that. So even if there already some APSC body in Canon that is basically a 5DMarkIV and that cost 1/3 of the price and that maybe extending to FF could justify $300-500 markup in price, Canon ask for $2000 more. because they can, and that a way to get more out of the R&D, even if it was offered first on an APSC body.
If you think K1 is the same. K1 is a K3-II with almost the same of everything, a 36MP old school sensor and some research to improve the high iso that been already retrofited into K70. Other than that there basically the mirror box and the design to keep the AF compact and a real new SR mechanism. But it is because FF is new overall.
If Pentax was to make another FF tomorrow, they could reuse everything except the one of 2 things they would change. If it a different sensor, that only the cost of the part. if it better buffer it is only again the cost of the memory so like 50$ for a buffer of 120 36MP photos. If it is about shutter speed it is basically buying the shutter/mirror from dedicated manufacturer...
And while we still pay a premium for the K1, the K70 has the same pixel shift and same improved high iso technology but they are asking half the price on it! And to justify they removed on purpose the advanced AF in the K70 even through the cost may be exactly the same for manufacturing. this is just this AF module introduced with K3, they don't want to provide it as too low price so people want to upgrade...