Well i found this in my basement with some old 35mm camera, and was wondering if anybody knows anything about it? Seems like a pretty solid flash.. still works and everything. I cant quite figure out the settings though? Its got an ISO setting, and it goes 64, 100, 200, 400, 1000. Is this an ISO for the flash itself or what? Here is a picture of the back. Trying to figure this all out for tomorrow, shooting a high school basketball game for the school. Thanks!