Quote - There is a good reason many don't take photos in the right range BB, and that's because the camera they own is not capable of doing so.

Many digital camera CCDs just can't do it.

While it's true that most cameras aren't able to do HDRI in one exposure, every camera which is capable of bracketed images can provide pictures which can be processed to HDRIs with the appropriate software. So when you attempt to do an HDRI and fail, there is no reason to blame it on the camera.