I am sure that there is a lot of cameras that will function in AP, but i noticed that Canon and Nikon have filter support from Baader. Also a lot of mod information on cooling and so on.
I supose it needs someone to set the stage in evaluating other cameras which takes time and sometime a lot of money, along with the risk of failure and the potential of destroying a camera in the process.
If you already have the camera, maybe you can evaluate long exposure without modding and see how it goes.
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