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Author Message   Hotswank Tinkerer Username: Hotswank Post Number: 1 Registered: 04-2013 Rating: N/A Votes: 0 Posted on Monday, April 08, 2013 - 07:40 am:    If you open the back and flip the SL upsidedown, you will see a very small 'sliding door' next to the rewind fork and behind it there is what looks like a pot of some kind but you can't turn it, only pushed up and down as far as I can tell. Does anybody know what this is and why it's accessible to adjust what? If I take a picture in portrait mode turned CW, the needle suggests +2 stops faster and if turned CCW, it says -1 stop slower. Similar behavior is thru when checking the battery and looking down or up and/or combination of landscape or portrait mode... Any thoughts why the needle doesn't stay level? Thanks in advance! I've looked for a free SL service manual to no avail.