This
is down to personal choice as to what record keeping you attach to your
processed films.
You can write it in a notebook, a file on your computer or as I do along the
top of the film sheet. What data should you record:
1. Date it was developed.
2. Make and type of film.
3. Reference number of the film for
your files. I use format size and date of development as a reference number.
4. Developer used.
5. Dilution.
6. Development time.
7. Results.
The more
comprehensive your records are the more you will use it, to refine the
processing of your film. Ansel Adams believed in keeping meticulous records,
this maybe part of the reason his pictures are so well printed.