Astr 4000 Videos and Links

You can find videos and links used in Astrophotography here.

Catching the Light website by Jerry Ludriguss

Sky & Telescope's Astrophotography Resources page

Focusing with a Bahtinov mask

Focusing with a Hartmann mask

Registax Download         Short Registax How-To video

Another short Registax How-To video

Introduction to Registax video