DSO Astrophotography: What Equipment?

Astrophotography is quite a learning curve (I won't lie to you) but, man is it worth it!

It's expensive, complicated and time consuming but, once you've accepted (or dismissed) these aspects, your all ready to get some fantastic works of art captured light years away from Earth.

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Deep Sky DSLR imaging

This guide has been split into three sections: how to assemble your imaging set up, what setting you'll need for your camera, and how to take images. All of these are equally important and, while it all may initially seem complicated, the settings remain the same (and stored in your camera's memory), the set up will seem very intuitive (easy to remember) and once these are sorted, taking the images is simplicity itself.

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Aligning RGB Channels

There is a check box in Deep Sky Stacker's options to do this automatically for you but, if you find you've already created your stacked images and the colours aren't aligned, read on.

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L+RGB Processing

This tutorial starts after you've stacked your luminance images and your RGB images to create two .tiff files for processing in Photoshop or GIMP.

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Processing Your Images in Photoshop

I won't go through how to stack or align your images here because the software you use - such as Deep Sky Stacker or AviStack - is set up to work well with the default settings and, if you want to play around with the settings, you'll have to understand the deeper principles of the software far better than I could do justice to here.

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