what can I expect using an etx 90 and a Canon T3i
Posted 11 December 2012 - 11:08 PM
Posted 22 December 2012 - 11:59 AM
I thought someone else would chime in. But, I see you haven't had much response.
You could use ETX 90. But, in movie mode, the planet will be quite small, even if you use a barlow. Since dark skies are not a must (I image from my backyard and light polluted skies) for planetary imaging, you might be better off using your C8 with a 2x barlow. There are adapters to get it at prime focus. Also, with alt-az mounts, you will get some field rotation as you track and shoot the planet. Keep videos short, maybe 2 minutes. And, that won't be a problem. Use the movie mode that gives you a format recognized by one of the stacking programs, ie Registax.
Let us know if you have some other questions.
Posted 22 December 2012 - 03:08 PM
thanks for the response! I was thinking of trying the setup just because its more portable nd easier to setup for a quick session. Ive done imaging with the C8 and. Webcam in the past I'm just not familiar with the resolution I could get with the movie mode on this camera.
Posted 22 December 2012 - 04:47 PM
Posted 22 December 2012 - 10:11 PM
I'll look into the what mode the camera records in before I use it in movie mode.