09-14-2015, 11:33 PM
I wouldn't use it on the moon, unless they get the framerate up some more, or you are very patient. Actually, processing it would take a while too so maybe you will need that either way. Because the moon doesn't vary much over a short time, it is already not too difficult to do a mosaic if you want high resolution. It could be a little easier to grab it in one go than a mosaic though.
Saturn or Jupiter are very different. Here you will be optically limited. I've tried going up to 6m focal length and they still fit on my astro imaging sensor which for practical purposes is 10x crop factor. Scaling that up for APS-H, do you have some 46m focal length optics lying around? On the flip side, Jupiter spins very fast. A very rough rule of thumb is you might have a couple of minutes before its rotation is detectable. This is a problem because unless you have perfect sky conditions, air will move and you need many frames to cherry pick the best, reduce noise, then calculate it out. I arbitrarily pick at least 1000 frames or much more in my less than ideal typical conditions. 5fps isn't going to cut it, even if you use de-rotation software on it. The astro-camera I use outputs raw video at 60fps which is reasonable for this type of job.
In short, use the right tool for the job.
Sticking with space though, this could be a killer for deep sky imaging if you need to cover a large area at high resolution in one go. For example, those that are searching for moving objects close to Earth, or other transient astronomical phenomenon like supernovas. Time is of the essence with various trade-offs to be made, so even here it isn't a free lunch.
Saturn or Jupiter are very different. Here you will be optically limited. I've tried going up to 6m focal length and they still fit on my astro imaging sensor which for practical purposes is 10x crop factor. Scaling that up for APS-H, do you have some 46m focal length optics lying around? On the flip side, Jupiter spins very fast. A very rough rule of thumb is you might have a couple of minutes before its rotation is detectable. This is a problem because unless you have perfect sky conditions, air will move and you need many frames to cherry pick the best, reduce noise, then calculate it out. I arbitrarily pick at least 1000 frames or much more in my less than ideal typical conditions. 5fps isn't going to cut it, even if you use de-rotation software on it. The astro-camera I use outputs raw video at 60fps which is reasonable for this type of job.
In short, use the right tool for the job.
Sticking with space though, this could be a killer for deep sky imaging if you need to cover a large area at high resolution in one go. For example, those that are searching for moving objects close to Earth, or other transient astronomical phenomenon like supernovas. Time is of the essence with various trade-offs to be made, so even here it isn't a free lunch.
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