View Full Version : DFK41AF02.AS with IR cut filter

Cy Holmes
December 12, 2007, 05:11:05
I bought the DFK41AF02.AS when I started to dabble in astrophotography. Now having a little more knowledge I realise I should have bought the camera without the IR cut filter. So my question is simple, can I remove the filter?
Any one out there with some idea? :)

Stefan Geissler
December 12, 2007, 08:43:31

Removing the filter is no good idea, because you would have to disassemble the camera completely. This would also destroy the calibrated distance between the CCD and the housing. This results in blurred images. If you removed the filter, you will loose the guarantee.

The DBK camera models are without the IR cut filter.

Cy Holmes
December 12, 2007, 21:49:05
It's not the answer I wanted to hear, :o
my inexperience has been expensive:)

Given that the camera will have limited use with the IR cut filter, I probably don't have much to lose by trying to modify it, if it doesn't work I'll then have to think about getting another camera:rolleyes:

Stefan Geissler
December 13, 2007, 08:24:17

It is your decision :-)

February 18, 2008, 11:51:29
Could someone point me to where i might find a chart showing frequency cutoff response for the IR filter on the DFK 41AF02.AS.


Stefan Geissler
February 19, 2008, 09:54:40

All questions for spectral sensitivity and behavior should be answered here:


February 23, 2008, 05:14:00
Thank you Stefan.