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Welcome Jasmine
If you want a camera that can do some DSO stuff as well as planetary and guide as well I would suggest a larger chip size of the 385mc and 462mc.
I have an 290mc which has a 2.1 mp sensor and have dabbled in doing some DSOs' with it as well as lunar & planets and it . Because it isn't cooled, noise is a problem but taking darks and flats helps a lot, that plus keeping exposures short.
Using my camera that way I have imaged the Trapezium in The Orion Neb , the Hourglass in the heart of the Lagoon Neb, the Keyhole in the Carina Neb and other objects used with an ED80 and EQ mount. Taking something like 100 exp. at 30 sec. is a good starting point for DSOs', with bright areas like the Trap maybe only 10 sec exp is needed to avoid blowing out the core.
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