The NA-RX100III sets a new standard for compact camera housings. While it builds on the success of the NA-RX100 and NA-RX100II, it is clear that Nauticam did not just copy and paste this housing into existence. The features you’d expect are certainly present, like ergonomic design, the clearly labelled controls, sculpted shutter release and more. A closer look reveals features like an updated fiber optic connection block, built-in vacuum check system, 2 accessory bulkhead ports and support for routing HDMI cables for an external monitor.
The NA-RX1000III is milled from a block of solid aluminum, then hard anodized. The result is a rugged and reliable piece of gear that will stand up to saltwater and the daily rigors of diving. Since the housing accesses all of the camera controls, including the front control ring, the user can take advantage of the enhanced programmability in the RX00III.
The RX100 housings feature an industry standard 67mm threaded port mount, meaning it is easy to attach a number of different wet mount lenses.
While the new 24-70mm lens Sony installed in this camera is terrific, and reasonably wide, going wider allows the underwater photographer to get closer to their subject. Getting close means less water, and less particulate, between subject and camera, and results in more colorful images.
Testing indicates that the Inon UWL-H100 (either in the m67 mount or the LD mount) is an ideal wide angle lens for the RX100III. This combination will result in a diagonal FOV of approximately one hundred and ten degrees (110º).
On the macro end, the Nauticam Super Macro Converter 1 (SMC) is the ideal choice and enables about a 1″ vertical subject to fill the frame. This is over 4x magnification provided by the stock lens (stock lens images 160mm wide, SMC 38mm wide).
Nauticam Vacuum Check System
In a feat worthy of Houdini, the engineers at Nauticam managed to squeeze in the Nauticam vacuum monitoring and leak detection electronics. By default, it serves as an audible and visual leak detector, but add a Nauticam M14 Vacuum Valve, (p/n 25611) and it becomes a vacuum check system. The vacuum monitoring system provides early warning for any problem with watertight integrity – which means peace of mind when shooting underwater.
Depth Rating 100m
Dimensions 150mm (W) × 101mm (H) × 107mm (D)