View Full Version : Need for IR Cut Filter with monochrome

April 4, 2009, 10:45:08
Would appreciate advice on the following.

We have recently purchased a Monochrome DMK 31AU03.AS camera used principally for imaging the moon. Is there any advantage or disadvantage in the use of an IR Cut Filter when taking only monochrome images with this camera?

Many thanks

Richard. Sydney, Australia.

Stefan Geissler
April 6, 2009, 12:56:10
Thank you very much for your inquiry. We are only the camera fab and thus we are unable to help with any application. Fortunately there is an excellent tutorial at


April 6, 2009, 23:48:22
For monochrome you should narrow the band pass. Most of the people use an IR/UV cut filter (=only visible light pass). That is OK for most of the uses.

However, for imaging the moon is better to use the longer waver such as red-IR.

For most of the telescopes you can use a Red filter such as the Baader RG610 (cuts waves shorther than 610nm; ie. orange, yellow,... violett...)

But if your telescope allows you will be better to use an IR pass filter such as the Baader IR pass filter or the Astronomik Planet IR Pro.

For a Celestron C8, and DMK 31AF03.AS, I am getting very good results with an Astronomik IR Planet Pro 742. For a C9 or bigger use the Astromomik Planet Pro 803.