This thread has completely lost me
- the OP wanted to reduce the size of a RAW file because it was too large to email. He clearly wanted to send someone the RAW file (not a TIFF or jpeg). How the heck converting the RAW to a Tiff which will be a lot bigger file size can help I do not know. Then you suggest converting the TIFF to a jpeg
I am sure the OP could have mailed a jpeg in the first place if he had wanted that.
Maybe I am missing something here but I am completely bewildered - time to kick this thread into touch I think.