That seems to happen when the top is loosened a bit and the desiccant tab pops out of it's slot. On tightening again the tab is compressed and voila.
My Camera is on it's way back to China because moist air is leaking into the front chamber causing all sorts of issues with water running across the sensor. Sam says they can fix it but I am concerned. The seal is round and thin, not a lot of sealing efficiency. It should be wider and flat. The desiccant should also be a ring shape that encircles the sensor with lumps that fill the indentations. The pads that fit on the top of the desiccant tabs are prone to rubbing off and bits land on the sensor. They should be ptfe not foam. The camera should have a window heater.
Now those changes would add to the cost but I would pay $50 for a better seal, window heater and desiccants that are not vulnerable to crumbling.
Don't get me wrong it's a great camera but not perfect.
I couldn't agree more, but I have no complaints otherwise. The camera is overall a great product provided you're aware of these issues.
I first ran into this when I tried to remove my MC-Cool from my C8 EdgeHD that had been tightened down to a 2" IDAS filter. The camera opened up, to my shock, instead of unscrewing from the filter where you would have expected it to.
I managed to catch all the desiccant tablets in my hand so I didn't loose them in grass, but it was still a heart stopping moment for sure.
I've also had moisture problems due to the lack of a heated window, so on the next ASI1600MM-Cool (ASI1601MM-Cool ) I'd love to see a heated window and would pay extra as well.
Edited by rjbokleman, 11 October 2016 - 08:00 PM.