I have a Nettar and one or two other folders and since the frame numbers on all the roll films I use are very faint I have small key-fob lights which I use to be able to see the numbers. The 'press to switch on/off' are the best if you can find one but the 'press and hold' ones I hold in between my teeth - yes, I have had some funny looks from bystanders.Recently bought one of these type of 'Signal Nettar'. Don't recall which specific one, a 6x6 folder.
Loaded and wasted a roll of film.
Wound through a roll as i couldn't see any arrows, or the following frame numbers through the red window.
It was Ilford (HP5 i think).
Can any regular user of this kind of folder suggest, in the absence of being to see any markers, frame numbers -
How many winds to be at 'frame 1'?
How many winds to advance to next frame?