TUTORIALS

1: New Technique for Comet Image Processing

[Only available with web subscription]

2: Using Photoshop for creating LRGB Images

[Only available with web subscription]

3: Analyzing Autoguider Logs in Excel [revised Feb. 9, 2002]

[Only available with web subscription]

4: Writing Scripts for MaxIm DL

Scripting allows you to automate control of your camera, and you can also use scripts to automate image processing.

• MaxIm DL objects, properties and methods: a complete listing

[Remainder of tutorial only available with web subscription]

5: Guiding successfully with the STV

[Only available with web subscription]

6: Removing large halos (advanced tutorial)

Many cameras and CCD chips will cause internal reflections on very bright stars. These reflections are often taller than they are wide because the light reflects off of the surface structure of the chip (chip surfaces are not smooth). The light further reflects off of the chip cover slip and/or the window found just above the chip. This tutorial shows a complex but effective method of removing most of the effects of such halos. TIP: For simpler, smaller halos, the easiest method is often simply to select the offending halo with the Magic Wand tool in Photoshop, and desaturate and darken it. The before/after image is by John Smith, and used with his permission.

• Tutorial: Removing halos caused by close internal reflections

7: Understanding how (and why) to calculate an optimal sub-exposure time

[Only available with web subscription]

Copyright © 2000,2001 by Ron Wodaski. All rights reserved. Material may not be used without permission. If you provide a link to these pages, please send me an email message at support@newastro.com about the link, and I will add a reciprocal link to my site.