Note - both red and pink pictured, only red available.
Red Filter which into G series ports and can be installed and removed during the course of the dive.
The following color correction inserts can be installed inside a dedicated slot of the BigEye Lens G Series.

The Red Filter is used to restore the red color absorbed by blue water. In shallow depths, these filters can serve as an attractive alternative to artificial light sources.
Specifications and compatibility
Specially designed for Canon underwater housings (WP-DC34, WP-DC28, WP-DC35, WP-DC38, WP-DC43, WP-DC21 and WP-DC11)
Can be mounted on Canon G7 and G9 Housings (WP-DC11 and WP-DC21) by using the EyeDaptor G9-G10 (Cat. No. 4703)
Can be mounted on Canon S90, S95 and S100 Housings (WP-DC35, WP-DC38 and WP-DC43) by using the EyeDaptor S Series-G Series (Cat. No. 4707)