Glossary | Telescope accessories | General | Series | OWB-CCD Type 3
This filter converts astro-modified DSLR cameras to enable them to be used for terrestrial photography again.
The OWB (original white balance) filter shifts the entire spectrum of the converted DSLR camera to such an extent that it can be used for terrestrial photography again, with no limitations.
It is therefore no longer necessary to decide to dedicate a camera exclusively to astrophotography, which is considerably easier on the wallet!