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Shreyansh

Can a really good camera substitute for a dark stargazing site ?

Can a really good camera substitute for a dark stargazing site ?  

11 members have voted

  1. 1. Can a really good camera substitute for a dark stargazing site ?

    • Yes
      2
    • No
      9


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It depends on what you define as a good camera. Do you want to take still photographs or view the sky in near real time using a video camera (Electronically Assisted Astronomy) ?

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A standard DSL camera is all you need, and a tripod. You can experiment with Iso and subs of different length of time. You should find a happy balance. Further post processing on computer will allow you to tweak images til you get something that you will be happy with. I'm guessing you mean you want to image the night sky. Perhaps you mean view the sky via live view on camera, or hook it up to computer? 

Edited by LukeSkywatcher

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The answer has to be no but there are things you can do to help.    Narrow-band imaging will cut out a lot of light pollution but then you need expensive filters and an expensive camera.  Well, mainly the filters, you can get away with relatively cheap cameras these days.  ZWO produce an excellent range of CMOS cameras which, in general, are easier to use than CCD cameras.  But this is a huge subject.

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Maybe a camera with a light pollution filter or checkout narrowband imaging of emmission nebulas.  You can do this under heavy light pollution or when the full moon is up.

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Camera, with fixed focal length lens (non zoom). ability to control shutter\speed etc. will help, but in the end it all comes down to what the quality of light can be gathered, dark sites give the best quality....

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No, not really. Narrowband photography will help a lot, but you will get false color images. Does a good camera improve imaging in a light polluted area - not really. Only filters will. Does a good (cooled) camera improve imaging at a dark side? Yes, because you can get longer exposure times without heating the sensor and causing artifacts.

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If I understand the question correctly, you are asking if a camera 'sees' more on a bad site than your eyes on a good dark site?
the answer is 'yes'

Your eyes only catch the light of the moment (± 1/18 of a second, that is why you need at least 18 fps to get a flowing image in a movie. The filmindustries standard is 24 fps), while a camera gathers the light over a long period of time and therefore catches far more photons and  'sees' more. 

 

 

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