How to keep track of what film was in what camera? And more...

[AnselMortensen]

Blue painter's tape.
Sharpie.

 

[tcolgate]

Someone else suggested this, but notching the rebate area might be an option.
Though this is a good case where home dev of B&W can save the day.

 

[abruzzi]

It’s not medium format and it’s not a solution here but I do really value the data printing my F6 does between frames sometimes. I think the Contax 645 does the same, so a nice cheap option for you if you want it in medium format.

There are actually a few MF cameras that do this--the Pentax 645 N and NII both do it and the Fuji GA645Zi does it as well. There may be others as well.

 

[Pieter12]

I think the Contax 645 does the same, so a nice cheap option for you if you want it in medium format.

The Contax 645 is not cheap by any stretch of the imagination. https://www.ebay.com/itm/2571513794...ILYBR7gHg7UAv8k2zkStRRp2zXzQ6d8xoCaZYQAvD_BwE

 

[brbo]

Please, have you sarcasm detector checked by an expert.

 

[Cholentpot]

I use instagram. My feed is photos of the camera, what roll number for the year, what camera, what film, what speed, date loaded and date finished. If film is color I upload as a color photo, if b&w I'll upload as B&W filtered photo. When I finish the roll I go back and edit the caption to the finish date and notes on the camera. I then write what I have on the cannister or roll. Two points of reference.