Note: Crosfield is now defunct; most of its functions have been taken over by the International Press Telecommuncications Council (ITPC).
Among other things, RichTIFF defines how to organize the contents of the file, how to format thumbnails, and how to place special 'newsphoto parameters' in TIFF tags. Such parameters are formatted as data records following the "IPTC/NAA Information Interchange Model", and placed as binary data in one of the tags 0x83bb or 0x8568.
As with most other standards from ISO and related bodies, the IPTC/NAA documentation is distributed on paper only, and must be obtained directly from the IPTC or the NAA. The following addresses may be used:
International Press Telecommunications Councilor
10 Sheet Street
Newspaper Association of America
The Newspaper Center
11600 Sunrise Valley Drive
VA 20091 USA
As a footnote, the IPTC/NAA standard itself includes a well- designed standard for image transfer, which in some respects are more comprehensive than TIFF. IPTC/NAA files can also be used to wrap TIFF, JFIF, Illustrator, and several other file formats.
In addition, products from Kodak, Hasselblad Electronic Imaging, Innovativ Vision, T/One, and others, can handle IPTC/NAA and/or RichTIFF files in one way or another.