Quote:
Originally Posted by Shiraz
so the scope works as a starting point. try taking a pic of the moon with the cam and let us know what you get. If you can't get the moon, try a distant daylight scene. Make sure that it comes to focus
Jupiter should be about 50 pixels across if my mental calc is right. If you are only getting 9 pixels, is there any possibility that you could have been looking at a nearby star? The field of view of the camera is waaay smaller than that of the DSLR and it can be quite hard to find objects with such a narrow field of view.
what software controls do you have for exposure time? Total guess, but would expect to be able to see Jupiter at exposures of somewhere around 100ms.
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The moon is a tiny bit blurry but otherwise fine. Distant terrestrial objects, also not quite in focus. Perhaps now that I re-collimated they would be better. It was definitely Jupiter, a disc, and I think I saw moons to start with too. Software control is called "Webcam Monitor" and came with the webcam, but maybe if I use something different that will be more effective...do you have any suggestions?
I have attached a webcam picture of the moon, and a screen shot of what I was doing with the Jupiter pictures. It isn't actually just a few pixels looking at it now, it just looks really "blocky" when zoomed into.. given the resolution of the moon pic it is really strange I can't get any detail on Jupiter, after all it is almost as big more or less as the Langrenus crater on the sea of fecundity. weird
edit: I guess the poor resolution is reasonable without stacking given how massively enlarged the picture is. The problem is the complete lack of detail. I strongly suspect that the software is metering the entire sensor, even when I'm looking at a zoomed image, and so there is no scaling of an appropriate nature on the planetary disc. So I wonder whether different software might help. Surprising that only I seem to have this problem given how many people buy the camera. The telescope setup is just a plain old 8" Newtonian F/5.