I appreciate this is a very basic subject but anyways: I've just got a Pentax MZ-5n and am currently shooting a black and white roll I intend to process myself. I've never used a motor drive camera in past and always rewound my black and white home processed manually so as to leave the leader protruding, for easy install on reel for developing. I've looked through forums but have not found anything specific to my two questions. 1. Does anyone know of way to rewind Pentax MZ-5n leaving leader protruding? 2. What is good procedure for getting fully rewound film out of cartridge and on to reel in darkroom? Do you use any bottle opener? Any tips to accomplish this safely and efficiently?