nenesolarte

Hello, I am a new Hasselblad user, just got a 500cm from eBay. However, after testing it I’ve realized it has something odd with the mirror lockup. Whenever I press the mirror lockup button, the camera acts as if I was pressing the shutter button. The mirror does not stay up, the shutter is released and then the mirror just comes back down… just as if I pressed the shutter. Is there an easy fix to this? Is the camera jammed? Are there any easy ways to fix it? I appreciate any suggestions.