I've had an Agfa Super Isolette sitting here for a while that I never use because the rangefinder is miscalibrated. Close focus is off by at least a foot. Otherwise the camera in beautiful condition – one of the nicest gifts I've ever received! I usually do my own repairs, for better or worse, but I've heard that this camera is difficult to work on and given its rarity and value I'd probably be better off having someone who has already seen the inside of one work on it. Does anyone have suggestions for a good repair service for this camera, or failing that tips for DIY calibration?