Okay, there was a bug with iOS 8 that saw RAW files interpreted as Tiff files. This is an issue if you transfered a file say with Airdrop, you transfer the RAW file but it is saved at the recipient device as a Tiff meaning you only get a low resolution image (original thumbnail).
This issue remains with iOS 8.1 in case other people run into this issue.
This issue remains with iOS 8.1 in case other people run into this issue.