Telesin 3-in-1 Underwater Filters Set for GoPro HERO9 Black — Color Correction Filters

The Telesin 3-in-1 Underwater Filters Set for GoPro HERO9 Black is a compact accessory kit designed to restore natural color balance when filming underwater. The set includes three filters—typically a red filter, a magenta filter, and a macro/close-up variant—engineered to attach to the GoPro HERO9 Black housing or dive dome. These filters counteract the dominant blue and green cast that appears at depth, improving color fidelity and contrast for diving and snorkeling footage without altering camera settings.

Advantages

The filters provide targeted color correction tailored to different water conditions and shooting distances, reducing the need for extensive post-processing. Machined to fit the GoPro HERO9 Black housing and dome mounts, the set offers quick installation and removal, lightweight handling, and minimal impact on framing. Using dedicated color-correction optics preserves detail and contrast, making underwater footage appear closer to how the scene looked in person.

Suitable for

• Recreational diving and snorkeling
• Underwater photography and videography with GoPro HERO9 Black
• Macro and close-up shots of marine life
• Filming in tropical blue seas and green coastal waters

Key specifications

• Compatibility: Designed for use with GoPro HERO9 Black housing and compatible dive domes
• Contents: Three interchangeable filters (red, magenta, macro/close-up variant)
• Function: Color correction to reduce blue/green color cast and enhance contrast
• Mounting: Clips or fits to camera housing/dive dome for secure attachment during dives
• Material: Optical-grade filter elements with lightweight mounting frame

How to use

Select the filter appropriate for the depth and water type: use the red filter for blue, open ocean conditions to restore warm tones, the magenta filter for green, coastal or algae-rich waters, and the macro/close-up filter for tight framing of small subjects. Attach the chosen filter to the GoPro HERO9 Black housing or dive dome according to the mount interface, ensuring a secure fit before entering the water. Verify framing and white balance in-camera and make small exposure adjustments as needed. After the dive, rinse the filters in fresh water to remove salt and debris and allow them to dry before storage.

Usage recommendations

The best results are achieved by matching the filter to water color and shooting distance: red for deep blue water at greater depths, magenta for green coastal conditions, and the macro filter for close-up subjects. Avoid using filters in very shallow water where natural light already provides accurate color balance, and handle optical surfaces carefully to prevent scratches that can affect image quality.