As soon as you go underwater, the magnification behind the flat port makes that vignetting go away. It's important to note that when you're taking photos above water, the camera is actually so wide that you can have a little vignetting in the housing.

There is a minimum focusing distance of 12 inches, so you'll want to consider using the sealife macro lens for smaller subjects. The lens is very wide, so you can get nice and close to your subjects for better color and detail. We found that using the shallow underwater white balance mode tended to produce the best results. We did notice that the underwater white balance was a little off at times, but changing white balance settings in the camera was easy. The corners in the images are fairly sharp and the dynamic range in the photos resulted in a nice gradient from the highlights to the shadows. At 14 megapixels, the photo quality is surprisingly good for such a small camera.

Overall the Sealife ReefMaster RM-4K performed as expected when it came to underwater video capture, and was better than we expected in the underwater photo arena. The dynamic range isn't half bad! See the nice gradation of details and color between the bright and dark parts of the image? This fish didn't like being photographed with the RM4K - despite the small and unassuming size of the camera Unique pressure lock thumb screw seal systemīeautiful Dynamic Range and Details in this Coldwater Reefscene captured with the RM-4K Whopping 140° field of view with fisheye lens SeaLife Reefmaster RM-4K Pro 2000 Set (with Video Light) Order Your Sealife Action Camera Now at Bluewater Photo! Status: Shipping Now - Order Now at Bluewater!

We'll make this review as simple as the camera - check out the photos and videos below! The 5000F may be a little overkill, so we generally recommend shooting the RM-4K with the Pro 2000 set. We took the RM-4K diving in the cold waters of the Pacific Northwest, along with the Sea Dragon 5000F video light. If you're looking for an action camera that's designed for underwater environments with a couple color correction modes and easy ergonomics, the RM-4K fits the bill. In fact, it's probably the simplest underwater camera we've ever used. Introducing the SeaLife ReefMaster RM-4K:Īn Action Camera Designed for Underwater Photo & Video!Įverything about the SeaLife Reefmaster RM-4K says quick and easy.

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