Ok, I know, officially these are unrepairable as there are no parts. However, my 180 chrome went off last weekend. If you press the shutter release, the cocking lever comes back up half-way, then if you apply a gentle pressure to the lever from below, it finishes the travel, and the shutter fires. I'm also not entirely convinced that the sound made while firing is consistent. So, does anybody have a recommended repair shop for one of these, or enough experience to say whether or not it's worth the cost of getting an estimate? Thanks.