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SeaLife ReefMaster RM-4K Ultra Compact Digital Underwater Camera

BH #SESL350 • MFR #SL350
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SeaLife ReefMaster RM-4K Ultra Compact Digital Underwater Camera
Key Features
  • Depth Rating: 130'
  • 14MP Panasonic CMOS Image Sensor
  • UHD 4K Video Recording at 30 fps
  • Wide-Angle Fisheye Lens
Capture the beauty of the aquatic world at depths as great as 130' with the ReefMaster RM-4K Ultra Compact Digital Underwater Camera from SeaLife. This waterproof, pressure-sealed point-and-shoot features a Panasonic CMOS image sensor, which records stunning UHD 4K video at 30 fps and Full HD 1080p video at 60 fps, in addition to shooting sharp, detailed, 14MP photos. Benefit from time-lapse shooting at set intervals, enabling you to capture change over time as a video file or series of still images.
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SeaLife RM-4K Overview

Capture the beauty of the aquatic world at depths as great as 130' with the ReefMaster RM-4K Ultra Compact Digital Underwater Camera from SeaLife. This waterproof, pressure-sealed point-and-shoot features a Panasonic CMOS image sensor, which records stunning UHD 4K video at 30 fps and Full HD 1080p video at 60 fps, in addition to shooting sharp, detailed, 14MP photos. Benefit from time-lapse shooting at set intervals, enabling you to capture change over time as a video file or series of still images.

The ReefMaster's wide-angle fisheye lens allows you to get extremely close to your subjects, greatly reducing distortion and fitting more in the frame. It offers a minimum focus distance of 12", which can be reduced by adding an optional macro lens that will bring you even closer to those corals, pygmy seahorses, and other fascinating denizens of the sea.

Save your brilliant videos and pictures to microSDHC memory cards up to 128GB in capacity. Additionally, view image playback on the RM-4K's 2.0" color LCD monitor. When you're ready to share your shots, the camera's Wi-Fi connectivity, coupled with the free app for Android and iOS devices, makes it possible.

Waterproofing and Durability
  • Depth rating: 130'
  • Pressure-Lock sealing system with a thumb screw ensures that the housing around the camera is watertight
  • Housing holds "Moisture Muncher" desiccant for moisture absorption
UHD 4K Video and 14MP Photos
  • Panasonic CMOS image sensor
  • Records UHD 4K video at 30 fps and Full HD 1080p video at 60 fps
  • Captures 14MP photos
  • Performs underwater color correction to restore hues that are filtered out by the water
Fisheye Lens
  • Enables you to get extremely close to your subjects, greatly reducing distortion and fitting more in the frame
  • Minimum focus distance of 12"
  • Adding an optional macro wet lens reduces this focus distance, bringing you even closer to those corals, pygmy seahorses, and other fascinating inhabitants of the sea
Display
  • Compose shots and view image playback on a 2.0" color LCD monitor
Controls and Handling
  • Housing/camera can be held and used with one hand
  • Four push-button controls enable easy operation
  • Optional tray and grip will improve balance and handling while providing attachment points for lighting arms
Shooting Modes
  • Time-lapse shooting at set intervals allows you to capture change over time as a video file or a series of still images
Connectivity
  • Wi-Fi and the free app for Android and iOS devices give you the ability to preview, download, and share your creative work with ease
  • Get the apps from the online Google Play and Apple App stores
Lighting
  • Add one or two optional Sea Dragon photo/video dive lights for enhanced illumination and color correction
Memory
  • Save your brilliant videos and pictures to microSDHC memory cards up to 128GB in capacity
Power
  • Runs on a rechargeable lithium-ion battery

SeaLife RM-4K Specs

Camera - Imaging
Sensor Resolution
Effective: 14 Megapixel
Image Sensor
1/2.3"-Type CMOS
Image Stabilization
Digital
Camera - Lens
Focal Length
2.5mm (35mm Equivalent: 14mm)
Focus Range
12" to Infinity / 30.5 cm to Infinity
Camera - Exposure Control
Metering Method
Spot, Multi, Center-Weighted Average
Exposure Modes
Auto
Exposure Compensation
-2 to +2 EV (1/3 EV Steps)
White Balance
Presets: Auto
Interval Recording
Yes
Self-Timer
2/10-Second Delay
Camera - Still Image Capture
Image File Format
JPEG
Camera - Video Capture
Internal Recording Modes
UHD 4K (3840 x 2160) at 29.97 fps
1920 x 1080p at 59.94 fps
IP Streaming
No
Camera - Interface
Media/Memory Card Slot
Single Slot: microSD/microSDHC [128 GB Maximum]
Internal Memory
No
Video I/O
1x Micro-HDMI Output
Power I/O
No
Other I/O
1x Micro-USB (USB 2.0) Data Output
Wireless
Wi-Fi
*Built-In
Mobile App Compatible
Yes: Android & iOS
App Name: SportDiver
Global Positioning (GPS, GLONASS, etc.)
No
Camera - Monitor
Display Size
2"
Display Type
Fixed Non-Touchscreen LCD
Camera - Flash
Built-In Flash/Light
No
External Flash Connection
No
Camera - General
Battery
1x Rechargeable Lithium-Ion, 3.8 VDC, 1100 mAh (Included)
Housing
Color
Black
Camera Compatibility
ReefMaster RM-4K
Lens Port
Built-In Lens Port
Mobile App Compatible
No
Control Type
Mechanical
Strobe I/O
No
Leak Alarm/Sensor
No
Environmental Resistance
Water-Resistant to 130' / 40 m (Unrated)
Materials
Molded Plastic
Packaging Info
Package Weight
1.02 lb
Box Dimensions (LxWxH)
7.9 x 5.9 x 3.1"

SeaLife RM-4K Reviews

See any errors on this page?

Does the Sea Life RM-4k camera have ring adapters ...

Does the Sea Life RM-4k camera have ring adapters over the lens for filters?
Asked by: John
The SeaLife ReefMaster RM-4K Ultra Compact Digital Underwater Camera does not have threads for filters. The camera will have built-in digital color correction. There will also be conversion lenses available. This includes the SeaLife Super Macro Close Up Lens MFR #SL571. Here is the link: https://bhpho.to/2Y3eAxC
Answered by: Lawrence C
Date published: 2019-07-24

In Time-Lapse mode, How long does the battery run ...

In Time-Lapse mode, How long does the battery run for? If I set it for 30 minute intervals is it going to last a week or just 2 hours like GoPro?
Asked by: Ryan
The SeaLife ReefMaster RM-4K Ultra Compact Digital Underwater Camera is still in development as of November 2018. At this time we don't have any technical information and SeaLife does not know when they will be shipping the camera.
Answered by: Lawrence C
Date published: 2018-11-13

Can I use remote control to control shooting on ...

Can I use remote control to control shooting on SeaLife RM-4K?
Asked by: Hai
Unfortunately, a remote control option is not available for this product.
Answered by: Kirk
Date published: 2021-04-06

question

I've looked all over and can't find it. Does anybody know what the focal length of the built in lens on this camera is?
Asked by: Matthew
We couldn't find that either. However, since it is very much like the most popular action camera, we will be of the opinion that the focal length is the same or there about of 2.9mm.
Answered by: Dennis A L.
Date published: 2018-08-27
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