Does anybody else suffer from the same problem? In astronomy whilst looking through the eyepeice I can usually see what can only be described as "typical bacteria like patterns". When I move my eyeball the pattern "swims" across to it's new position again. These are known in astronomy as floaters but the cause isn't exactly known. Some people suggest they are particles that just float around in the aqueous fluid in the eye! Having just started in the darkroom stuff I've noticed these floaters return whilst I'm using the focusing tool & looking at the grain. One solution suggested in astronomy is to shake your head from side to side just before looking in the hope that it'll take a few seconds to the floaters to stop moving. Has anybody else got any good solution and cures?