Originally posted by Pål Jensen The 645 system has an advantege over FF.
As I mentioned in another thread, I really struggle to see that its got an advantage:
- Less DoF then FF (due to much smaller aperture lenses) .. for the thin DoF-people
- More ISO noise then FF (again due to much smaller aperture lenses)
- In some situations not even better detail resolution then FF. K-1's 36 Mp + pixel shift resolution (PSR) will give comparable resolution to single shots from the bayer sensor in 645Z. The 645Z will only have a resolution advantage in those cases where PSR can't be used. With lenses in the same price class that advantage will be small (about 20% in linear resolution).
What may lead to the death of the 645 system is the lack of advantages over FF. They can keep it alive by doing three things. Two simple and short term. One expensive long term:
- Offer a larger aperture lens (or lenses as in plural)
- Increase the sensor size to FF 645
- Build a new mount with a short focal flange distance, other modernized features and a lens line up to go with it.
My guess is that Pentax will do both the former in the coming two years and that they will evaluate the latter and maybe do a pre-development study soon (maybe they already have). But I doubt we will see a new mount product launch before 2020.