salas

Yes absolutely, I was thinking to run it off a power pack, but a good power supply sorted it. If I plugged the cheapo supply in to the asiair then powered the camera from there I was still getting the same buzzing result.

No this was direct to the camera. I tried many variations.

Hi all, I did carry out a search on this before posting but surprisingly nothing came up. I'm probably not setting the search functions properly! Anyways thought I would post on this for anyone starting out buying a shiny new ZWO camera. They don't come with a power supply to start with, which seems bizarre to me considering the potential issues - which my post is about. I knew in advance my 533MC Pro wasn't coming with a supply so I decided to be a cheapo (after spending £1000's on other kit 🙄) and order a 240v to 12v dc power supply off of Amazon rather than what looks like a steep cost for the genuine ZWO one. Per standard operating procedure, weeks of clouds so I thought I will do dark's Bias etc but noticed if I touched the body of the camera there was a buzzing sensation. I thought maybe that's the fan, switched the fan off and it was still there. Ok maybe I've got a dodgy supply so ordered the same thing, the issue still there. I'm no electronical expert but took a multi meter to the body and earthed and was getting a reading of +40v AC current! It seems the cheapo 12v supply was spilling AC current to the camera. I bit the bullet bought a ZWO supply problem gone no electrical buzzing issues. Moral of the story? After spending huge sums of money on lots of sensitive kit, including mini PC's just get a quality power supply! Hope this helps anyone experiencing the same issue in the future.