Basic Specifications (Core for Underwater & Freediving Use)
- Dimensions: 72.8 × 47.2 × 33.1 mm
- Weight: 149 g (camera only)
- Waterproof Rating:
- Bare camera: 20 m waterproof (sufficient for mainstream freediving depths)
- With waterproof housing: 60 m waterproof (suitable for deep diving)
- Certification: IP68, supports long-term underwater operation
Underwater Sensors
- Built-in color temperature sensor: Automatically corrects underwater color casts (blue/green tint reduction)
- Built-in water pressure gauge: Activates at water depth of 1 m; displays and records real-time depth data (camera only)
- Operating Temperature: -20℃ ~ +45℃ (works for both cold and warm water diving)
II. Imaging System (Critical for Underwater Image Quality)
- Image Sensor: 1/1.1-inch square CMOS, 38 million effective pixels
- Aperture: Physically adjustable from f/2.0 to f/4.0 (Use f/2.0 in low-light underwater environments to double light intake)
- Field of View: 155° ultra-wide angle (ideal for panoramic underwater shooting)
- ISO Range:
- Still photos: 100 – 25600
- Video: 100 – 25600 (up to 51200 in Super Night Mode for cleaner footage in dim underwater conditions)
- Electronic Shutter Speed: 1/8000 s to 30 s (effectively prevents motion blur underwater)
III. Video Specifications (Commonly Used for Freediving)
- 4K (16:9): 3840×2160 at 24/25/30/48/50/60/100/120 fps
- 4K Free Crop (1:1 Square): Up to 4K/60fps. Shoot first underwater, then crop freely for vertical or horizontal framing.
- 2.7K: 2688×1512 at 120 fps
- 1080p: 1920×1080 at 240 fps (underwater slow-motion recording)
- Color Profile: 10-bit D-Log M (ample room for post-color grading underwater footage)
- Stabilization: RockSteady 3.0+; horizon stabilization & correction (excellent anti-shake performance underwater)
IV. Battery & Storage (Guaranteed Dive Duration)
- Battery: 1950 mAh low-temperature resistant battery
- Battery Life: Approx. 240 minutes (4K/30fps, typical underwater scenarios)
- Onboard Storage: 50 GB (stores roughly 2 hours of 4K video; recording available without additional memory cards)
- Expandable Storage: Supports microSD cards (maximum 1 TB)
V. Exclusive Freediving Features
- Automatic Underwater Color Calibration: The color temperature sensor detects water depth and water quality to correct blue/green color casts in real time, restoring natural underwater colors.
- Depth Data Recording: The built-in pressure gauge synchronously records depth information, which can be embedded into videos and photos for later review.
- 20 m Waterproof (Bare Camera): No waterproof housing required for typical freediving depths of 5–15 m, enabling easier operation.
- Super Night Mode: Automatically switches to f/2.0 aperture in low-light underwater environments (e.g., twilight or deep water), delivering low-noise 4K/60fps footage.
- 4K Free Cropping: Flexible framing underwater; footage can be cropped to 16:9/4:3/1:1 aspect ratios in post-production while retaining full 4K resolution.
VI. Recommended Accessories for Freediving
- Waterproof Housing: Essential for diving down to 60 m. Protects the camera from impacts and features ports for external microphones and lights.
- Buoyancy Handle: Prevents loss underwater and enables stable one-handed operation.
- Underwater Fill Light: Provides supplementary lighting for deep-water or night diving to restore color and details.