Do any of you have a favorite IR pass filter for imaging the moon? I'm now using a C9.25 so a small bandpass may be an issue with the limited aperature, advice? TIA, Vince
IR pass filter
Started by vbert, 01/11/2006 11:44PM
Posted 01/11/2006 11:44PM
Opening Post
Posted 01/12/2006 02:19AM
#1
Personally I like to use a Red filter, like an Astronimik red which is about 650nm. This filter also has IRB built in. You can image this way in B&W with K3 or in colour and extract the red layer. The red filter helps eliminate some of the affects of seeing.
Paul
Paul
Vincent Bert said:
Do any of you have a favorite IR pass filter for imaging the moon? I'm now using a C9.25 so a small bandpass may be an issue with the limited aperature, advice? TIA, Vince
Paul Maxson
Moderator - CCD Imaging and Processing/Solar System
Celestron C14, Mewlon 250, Orion EON120, ASI120MM, Flea3.
http://www.sunspot51.com
Posted 01/12/2006 06:33AM
| Edited 01/12/2006 06:34AM
#2
Vincent,
I can highly recommend the Astronomik IR pass filter, opening at 740nm. In a direct comparison with the Baader IR pass it showed a significant advantage.
However to maximise the effect a monochrome camera is needed.
The attached image shows the direct comparison.
Johannes
I can highly recommend the Astronomik IR pass filter, opening at 740nm. In a direct comparison with the Baader IR pass it showed a significant advantage.
However to maximise the effect a monochrome camera is needed.
The attached image shows the direct comparison.
Johannes
Attached Image:
Funding Member
