My old man has decided to pass on the family heir loom Pentax ME Super 35mm SLR to me and i'd like to know if anyone else out there has the same camera and could answer a few questions. A few pics I took this morning.... First Question: How do I set the shutter speed? I've worked out that 'B' is "hold the button down for as long as you want" but i don't know what '125X', 'M' and 'L' does? :scratch: Second Question: Is ASA the same as ISO and can I still get light filters for the lenses pictured below? Any help or suggestions are greatly accepted. Thanks in advance.