
Canon G7X Mark III Underwater Review

Canon G7X Mark III Underwater Review
Canon G7X III compared with G7X II
Canon G7X Mark III Specifications
Key Upgrades from the G7X Mark II
Additional Key Canon G7X Mark III specs
Improved Video Capability
Canon G7X Mark III Sample Video
We took the Canon G7X Mark III deep into the cold waters of the Hood Canal in Washington State, USA. It was the perfect place to test the Canon G7X Mark III's low light video and autofocus capability. We thought the camera performed really well and that the video quality shows a significant improvement from the Canon G7X Mark II. In fact, this is one of the top improvements of the Canon G7X Mark III. The 4K quality is really detailed and it's nice to have a camera from Canon where there is no crop factor in the 4K video. This video features underwater life native to the Pacific Northwest, including wolf eels, metridium anemones, zoanthid anemones, and sunflower stars.
Improved Photo Capability
Canon G7X Mark III Key Features
Body and Build
Autofocus
Sensor and Image Quality
G7X Mark III for Underwater Photography
Canon G7X Mark III Underwater Lenses
Wide-Angle Wet Lenses
Macro Wet Lenses
Canon G7X Mark III Underwater Housings
Currently housings have been released from Ikelite and Nauticam. We also anticipate a housing from Fantasea and Isotta:
Ikelite Canon G7X Mark III Underwater Housing
Ikelite is known for making top-of-the-line ABS-PC blend (polycarbonate) housings. This housing is small, lightweight, and features excellent underwater buoyancy underwater that will keep your arms from tiring while using the G7X Mark III. The ergonomics on the housing are great with fully functional dials and buttons. Ikelite has even created a fiber optic converter so that you can use your housing with Ikelite strobes. The housing has ports for Sea & Sea type fiber optic cables.
Nauticam Canon G7X Mark III Underwater Housing
Nauticam is known for producing extremely high quality and ergonomic aluminum housings. The Nautican Canon G7X Mark III is small and light weight with easy-to-use buttons and controls. If you're an underwater videographer, you will be excited to know that this housing supports HDMI output so you can pair your camera with an external recorder/monitor. The housing also includes a vacuum valve and leak detection system.
Fantasea Canon G7X Mark III Underwater Housing
Fantasea underwater housings are compact, lightweight, rugged, and stylish - and made of top-quality polycarbonate for any budget. The Fantasea Canon G7X Mark III housing is designed with excellent ergonomics and labels on every button for easy control identification. All controls are within a finger's distance and easy to operate. Fantasea housings are also reasonably priced and will not break your bank.
Sample Images from the G7X Mark III
Nudibranch gills photographed with the Canon G7X Mark III, Ikelite G7X Mark III housing, dual Ikelite DS 161 strobes, and Nauticam CMC. f/11, 1/160, ISO 400
Coonstripe shrimp eyes photographed with the Canon G7X Mark III, Ikelite G7X Mark III housing, dual Ikelite DS 161 strobes, and Nauticam CMC. f/5, 1/160, ISO 400
Squat lobster photographed with the Canon G7X Mark III, Ikelite G7X Mark III housing, dual Ikelite DS 161 strobes, and Nauticam CMC. f/5.6, 1/160, ISO 400
Wolf eel photographed with the Canon G7X Mark III, Nauticam G7X Mark III housing, dual Sea & Sea YS-D1 strobes. f/11, 1/125, ISO 400