Different filter glasses in the BG-group are utilised for correction of sensitivity of silicon receivers, the maximum sensitivity of which is in the range from ca. 800nm to 900nm, depending on the type of receiver. The increase in sensitivity from the blue to near infrared in detection leads to an over evaluation of the long wave (red) area. By selecting suitable BG-glasses this can be compensated for to a certain extent.

BG39 is suited for video cameras, whereby the infrared sensitivity must be suppressed to ca. 1200nm