Question: Can I also use the device with a camera adapter for Panasonic b81?
Answer: Yes, you can generally use the Bresser Classic 70/350 lens telescope with a Panasonic camera. For this, you'll need a suitable T2 adapter for the Micro Four Thirds mount of your Panasonic camera. Make sure the adapter has a T2 thread (M42x0.75) so it can be attached correctly to the telescope.