|
Hi,
Your question was optics or aperture. You left out the mount. If you really want to do some reasonably serious astrophotography then you will want to image for between 5 and 10 minutes per exposure.
I may be wrong but i dont think 1 minute subs with drizzle will cut it. You can take heaps of exposures and reduce the noise but at the end of the day you just wont have captured enough photons.
For the price of the 10 inch you can get an EQ6 and c9.25.
As far as autoguiding is concerned, unless you spend big bucks on a mount you will need it. You just cant go over a few minutes on an EQ6 without it. I imagine a meade with drizzle is even worse and on an alt az celestron without a wedge forget it (except for planetary of course).
You could get a field de-rotator for the Meade but then you will be limited to certain low portions of the sky and at 500 AUD it's not cheap.
In my opinion and its only my opinion an SCT is a good all purpose scope, an SCT on a reasonable EQ mount is even better. You get visual after a 10 minute setup and can definately do good astrophotography. If you go the Alt Az route i think you will be dissapointed for astrophotography unless you buy a wedge (and drift aligning on a wedge is not easy) but happy with the visual side.
Remember if you decide you like DSO astrophotography there is no escape, you will need to guide, that is a fact.
Paul
|