Tell us about yourself!
It would be very hard finding an equivalent camera that is both weatherproof and have extreme low light sensitivity that a camera built specifically for astronomy would have.
Do you have any issues with extreme cold temperatures effecting any of the electronics especially the Raspberry Pi?Have you had any issues with the acrylic dome scratching/yellowing?Since a Raspberry Pi 3 includes wi-fi that would probably be better choice for people. For people in warmer climates may be better to use something other then black ABS to keep the camera/Pi from getting too hot.
Sand Art Souvenir