Cause of the problem is malfunctioning advance lever within mirror box that prevents shutter to properly charge and release. Camera has to be completely disassembled. Fairly common problem with this model. We specialize in service and repair of 35mm SLR and Digital cameras and are certainly familiar with this particular problem. Our estimate for this particular model is $58.00. For more information visit our web site at www.garryscamera.com.
