Hi John, Is this important to know? Will knowing this make for better photographs? If so, in what way?
If a Pentax RAW file is essentially a TIFF (as I understand your comment), and Pentax doesn't much compress their RAW files (per comments on a digital camera review site), what is the advantage of using RAW over TIFF? I believe you mentioned that RAW allows for greater color depth (bit depth ... you know what I mean) but couldn't that be done with a TIFF file as well? scb John Francis wrote: > > > > I looked at the Pentax PEF file and noticed that it starts out > > directly with what looked like EXIF information. To see if this > > is true I wrote this simple perl script: . . . > > Actually, as has already been noted on the PDML, a PEF file is > simply a TIFF file. > > It looks as though it starts off with an EXIF header because the > EXIF structure is closely modelled after the TIFF format. > > In fact what you have is a TIFF IFD at offset 8 in the file (with > links to a couple of secondary IFDs), and a real EXIF IFD which is > at offset 330 in the files I have taken a look at.
