[tecleandor]

You don't need very big pockets for that.

Today you can find very affordable monochromatic astrophotography cameras, and you can also modify cheap DSLR cameras or even compact cameras to remove its IR/UV/low pass filters. You can even insert a different semi permanent internal filter after that (like a IR or UV band pass)

I've done a Nikon D70 DSLR and a Canon Ixus/Elph compact.

Some cameras are very easy, some very difficult, so better check first some tutorials before buying a camera. And there are companies doing the conversion for you for a bunch of hundred dollars (probably 300 or 400).

[looofooo0]

You can even do the conversion diy.

[tecleandor]

Yep. I did both myself, as I was using old cameras that I had hanging around and if I sent them for conversion it would be more expensive than the cost of the camera.

Conversions done in places like Kolari or Spencer run about $300-500 depending on the camera model.

If I were to buy a brand new A7 IV or something like that, I would of course ask one of those shops to do it for me.