How to use a film retriever
Following steps will explain you how to use a film puller to retrieve a filmleader out of a 35 mm cartridge.

0
Getting familiar with the 35 mm cartridge and film puller
1
Fully wind the film inside the cartridge
Turn the film winding core 3 or 4 times in the direction of film winding prior to use of the film puller. In case of 36-exposure film, the film fully occupies the cartridge. Therefore it is essentials to fully wind the film to make subsequent operation easier.
2
Insert tips of the slide sheets into the cartridge
Slide buttons A and B to the extreme right of the film puller until a snapping sound is heard. Hold the cartridge in the left hand en the film puller in the right hand and insert the tips of the slide sheets into the cartridge
3
Slide button A
Fix the cartridge holder by firmly holding with the left thumb and slide button A to the extreme left, check that button B is located at the extreme right of the button sliding groove.
4
Wind the film until a click is heard
Lightly press the opposite side of the film winding core with the left forefinger so that it does not turn idly. Slowly turn the film winding core in the direction of film winding until a soft click is heard. Immediately a click is heard, cease turning. If the film winding core is turned too far, continue turning until another click is heard.
When a click is heard, the end of the film is extracted from the entrance of the cartridge. The secret is not to turn the film winding core too far by stopping immediately when a click is heard.
5
Turn the film winding core in the opposite direction of film winding in the case of 12-exposure film
In the case of 12-exposure film, turn the film winding core 2 or 3 times in the opposite direction of film winding after a click is heard. This procedure also applies to 10- and 16-exposure films.
6
Slide button B
While holding the film winding core firmly with the left forefinger so that it does not turn, slide button B to the extreme left (unless the film winding core is firmly held, the film is forced to return to the original position when button B is slide)
7
Pull the film puller out of the cartridge
Release the left forefinger and the thumb from the film winding core and pull the filmpulleprout of the cartridge. The film leader is then extracted from the cartridge and held between the slide sheets.