IDAS GNB-ZF per uso con camere ZWO

Codice articolo: GNB-ZF

GNB-ZF per uso con camere ZWO (fb 6.5mm) and also IDAS AD19.4 drop-in filter mount 

The IDAS GNB filter passes through the Ha and OIII regions in the same manner as of the IDAS NBZ to suppress light pollutions in the visible light regions. Unlike any other filters available in the market, the GNB at the same time passes through the near infrared region intended for shooting galaxies that cannot be shot with any comventional nebula filters. The idea of designing this filter is based on the fact that the near infrared region can be hardly affected by artifical light pollution sources.