What is best method for astrophotography?
I am fortunate to have just purchased a Dobsonian 12″. It is fantastic and so easy to use. Unfortunatley, the drawback is when taking pictures.
Which method is best for the absolute beginner?
1. Using Celestron NexImage Solar System CCD Imager package.
2. Use an ordinary webcam or digital camcorder and using the free Registax software.
I don’t want to spend that much!
PLease no complicated answers!
Thanks.
When doing astorphotography with a Dobsonian, you need a light weight camera that’s fast. Lightweight because you don’t want to throw off the balance of your Dobsonian, and fast because Dobs don’t track, so you need to get your image in just a few second, else you will get streaks as the star field moves through your field of view. Web cams are usually not fast enough. With free registax software, and a little practice, you can take and stack images for brighter objects (stars, planets, and bright nebula)
Both Celestron and Meade have lightweight CCD imagers that fit right into a 1.25″ eyepiece mount. They have similar specs, but the Meade software has a feature that will do electronic tracking automatically. It takes a sequence of short images, locates stars in the image fields, automatically calculates how the field has moved (registers the images), and stacks each successive image onto the previous. So even without mechanical tracking for your scope, the Meade LPI can track and stack images electronically. Under $100, I think it’s worth the price.
The Celestron Imager package may have the same features, but I haven’t used one so I don’t know for sure.
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