- Removable AA/IR filters (many) [while Nikon has taken the AA off several cameras, this request is for a user option of having or not having it for any given shot]
- User definable "grad" filter (pc)
- User ability to remap hot pixels (re) [Curiously, implemented on Nikon 1]
- Use less aggressive AA filtration (many)
- Tilt/Shift sensor (many)