DiveVolk Lenses & Filters — Expand What Your Phone Can See Underwater
A smartphone's built-in lens is designed for air. Underwater, two optical problems immediately reduce image quality: first, water absorbs colors — red wavelengths vanish by 5 meters, orange by 10 meters, leaving photos dominated by blue and green. Second, the housing's flat port creates refraction that affects wide-angle coverage and close-focus distance. DiveVolk's lens and filter system addresses both problems, and is designed to attach directly to the SeaTouch 4 housing via the Expansion Clamp (Max Plus) or the built-in adapter ring (Platinum).
All DiveVolk lenses and filters use a 67mm thread — the standard size for underwater photography accessories. This means they're compatible with the DiveVolk Expansion Clamp, and any 67mm filter thread found on other underwater housings. Browse the full range below.
DiveVolk Lens & Filter Range
Red Filter (67mm)
The red filter is the essential starting accessory for underwater photography in blue ocean water. As you descend, longer wavelengths (red, orange) are absorbed first. The red filter compensates by adding a warm correction layer over the lens — restoring natural colors at depths of approximately 5 to 25 meters in clear blue water. The result is images that show accurate color rendition of coral, fish, and reef life rather than the blue monochrome that unfiltered underwater photography produces at depth. Particularly effective in the 5–15 meter range that most recreational reef dives occupy. The red filter requires a natural (ambient) light source and works best in good visibility tropical conditions.
Magenta Filter (67mm)
Where the red filter corrects color in blue ocean water, the magenta filter is the equivalent tool for green water — the conditions typical of temperate diving, lakes, rivers, kelp forests, and low-visibility coastal environments. Green water has a different spectral composition that requires a different correction. The magenta filter adds a warm/purple correction that counteracts green water's color cast, restoring more natural tones at depths of 5 to 15 meters. The right filter choice depends entirely on water color at your dive site — red for blue water, magenta for green water.
Dome Lens — Split Shots and Water Line Images
The Dome Lens is a specialized optical accessory that makes two distinct types of underwater photography possible. The first is the iconic over-under "split shot" — half the image captures what's below the surface, half captures what's above, all in a single frame with both halves in focus simultaneously. This requires the dome port's optical geometry to correct the refraction that would otherwise make it impossible for a flat port to achieve this. The second function is as a wide-angle conversion lens for general underwater shooting — the dome's curved surface eliminates some of the barrel distortion that flat ports create, particularly for wide scenes close to large subjects like walls, sharks, and whale sharks. An essential accessory for reef photographers who want wide-open, vivid underwater landscape shots.
+8 Macro Close-Up Wet Lens (67mm)
The +8 Macro Lens is a diopter-style wet lens that attaches to the housing's 67mm thread and dramatically increases close-focus capability. It allows the phone's camera to focus on subjects approximately the size of a golf ball from a very short distance — revealing detail that the phone's built-in camera cannot capture at macro distances underwater. Perfect for nudibranchs, flatworms, shrimp, small crabs, cleaning station behavior, and any small subject where the fine detail is the whole point of the photograph. The 2026 UPY Smartphone category winner used a macro lens as part of their setup for the winning frogfish image. Compatible with SeaTouch 4 Max Plus (via Expansion Clamp) and Platinum (via built-in adapter).
Filters Kit
The Filters Kit bundles the red and magenta filters together for divers who dive in varied water conditions — different dive sites, different seasons, different visibility. Rather than committing to one filter, the kit provides both, so you can select the appropriate color correction for each dive based on actual water color. A practical bundle for divers who travel to multiple destinations or who regularly dive both ocean and temperate environments.
DiveVolk Snoot (SL20)
The Snoot is a concentrated beam modifier for the DiveVolk SL20 macro light — it focuses the light output into a narrow spot, creating a dramatic high-contrast macro image effect where the subject is brilliantly lit against a completely black background. This is the "black water" look that characterizes some of the most striking macro underwater photography. The snoot eliminates ambient light from the image and concentrates only direct light on the subject, creating isolation and visual impact. Used in the Macro Snoot Kit configuration.
When to Use Which Filter
| Diving Condition |
Recommended Filter |
Effective Depth Range |
| Blue ocean water (tropical reefs, clear open water) |
Red Filter |
5–25 meters |
| Green water (temperate, kelp, lakes, rivers) |
Magenta Filter |
5–15 meters |
| Very shallow water (0–5 meters) or with video lights |
No filter — natural color or controlled lighting |
Surface to 5m |
| Split shots and wide-angle reef landscapes |
Dome Lens |
Any depth |
| Small subjects and macro detail |
+8 Macro Wet Lens |
Any depth |
| High-contrast macro with black background |
Macro + Snoot (from kit) |
Any depth, close range |
Compatibility Note
All DiveVolk lenses and filters use a 67mm thread. They attach to the SeaTouch 4 Max Plus via the DiveVolk Expansion Clamp (sold in the Trays & Mounts collection). They attach directly to the SeaTouch 4 Max Platinum's built-in adapter ring without any additional hardware. Filters can be stacked (e.g., red filter + macro lens) via the clamp system.
Why Buy DiveVolk Lenses & Filters from DiveCatalog.com?
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Authorized DiveVolk dealer — genuine products, full manufacturer warranty
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Expert advice — our team can help you choose the right filter for your dive site conditions
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Fast shipping — in-stock items ship within one business day
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Rewards program — earn points on every purchase
Frequently Asked Questions — DiveVolk Lenses & Filters
Do I need a filter for underwater photography?
In water shallower than about 5 meters, natural light is often sufficient for good color. Below 5 meters in most conditions, a color correction filter (red or magenta) makes a meaningful difference to how natural your images look. Video lights eliminate the need for filters in their illuminated zone. If you're shooting ambient light reef photography in blue water at 10 meters, the red filter is highly recommended.
What happens if I use the wrong filter?
Using a red filter in green water produces images with a strong pink or magenta cast. Using a magenta filter in blue water produces images with an orange or yellow cast. Neither is correct — the filter has to match the water color at your specific dive site. When in doubt, the Filters Kit with both filters allows you to switch based on conditions.
Can I use the +8 macro lens and a color filter at the same time?
Yes. Filters and lenses can be stacked on the Expansion Clamp system — attach the filter first, then thread the macro lens onto the filter. The macro lens focuses at close range; the filter corrects color. The combination works particularly well for macro photography in blue water at medium depths.
Does the dome lens work with a color filter?
Not typically. The dome lens is used for wide-angle shooting and split shots close to the surface where the color shift is less severe. Color filters are more useful at depth. In practice, dome lens shots are usually taken without a color filter or are corrected in post-processing.
What is the +8 in the macro lens name?
The +8 is the diopter strength — it indicates the degree to which the lens shortens the minimum focus distance of the camera. A higher diopter provides closer minimum focus for smaller subjects. The +8 is appropriate for subjects approximately the size of a golf ball or smaller — nudibranchs, shrimp, small fish, coral polyps.
The right lens or filter makes the difference between an image that looks underwater and one that looks like the actual reef. Browse the full DiveVolk lens and filter collection above and reach out if you'd like advice on which accessories suit your dive site and shooting style.
