I ordered a Leica M39
DO NOT BUY FROM THIS COMPANY! I ordered a Leica M39 - Fujifilm X Speed Booster, but I received a M42 - Fujifilm X Speed Booster with a M39 to M42 adapter ring. Anyone who knows anything about flange distances knows that these are not the same thing and what they sent me is NOT the item I ordered and can not be used interchangeably.