AFAIK, Jpeg files are 8 bits/channel. If your TIFF files are 16 bits/channel, Photoshop won't allow you to save as Jpeg unless you first change it to 8 bits. Try to convert by Image-> Mode-> 8 Bits/channel. Maybe that will help.
Francis
acetylcholine said:
nope...it's (gray) and i tried many times..cant save
If you're still having trouble try changing the Mode (Under Image>Mode to RGB). Under certain modes you do not get the option to save as a jpeg. Then do File>Save as and select JPEG option. This should work hopefully.
AFAIK, Jpeg files are 8 bits/channel. If your TIFF files are 16 bits/channel, Photoshop won't allow you to save as Jpeg unless you first change it to 8 bits. Try to convert by Image-> Mode-> 8 Bits/channel. Maybe that will help.