Quote Originally Posted by clayne View Post
This probably doesn't apply to sheet film (if that's what you mean by "sheets") but one of the things I like to do with 35mm rolls, atleast for film/lens/ei/etc type info, is to write it all on one of the 37/38 frames with a sharpie and then contact the frames. This results in the written info being exposed to the contact sheet (negatively).
I use a sharpie to mark all formats. For sheet film, a fine-point sharpie in the rebate. It doesn't get much easier than using a Sharpie. Other alternatives may look neater, though. In the past I used a labeler and found it to be time-consuming and over time the labels peeled off.