Nauticam SmallHD 502 Bright Monitor NA-502B-H Housing


Nauticam SmallHD 502 Bright Monitor with HD-SDI input support

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Nauticam SmallHD 502B-H Bright Monitor with HD-SDI or HDMI input support

The SmallHD 500 series, the sharpest and lightest 5-inch field monitors available, are the perfect complement to a Nauticam underwater video system. These products combine a stunning 5", 1920 x 1080 Full HD Display with an amazing suite of software tools for image monitoring in a compact form factor.

The monitor feels immediately familiar, almost identical in size to your favorite smart phone. A rubberized joystick is used to effortlessly flip through video "pages". Each page accepts multiple imagine analysis tools, configured by the user for their individual needs.

Pixel density (the specification that results in sharpness) now sits at 441 PPI (higher than an iPhone 8).  The monitor is capable of displaying 100% of the REC 709 color space allowing for accurate judgement of color and exposure even in bright daylight conditions.

Exposure Tools

Exposure Assist (False Color)

This overlay mode "paints" areas of the image that have reached a certain brightness value allowing the shooter to see what parts of the image may be over or underexposed.  The colors used to show these luminance values can be customized as well.


A slightly simpler version of the Exposure Assistant this tool "paints" areas of the image with a stripe pattern when they reach a pre-set brightness value allowing you to quickly see areas that may be in danger of being over or under-exposed.  You can run two zebra overlays at once allowing you to monitor both highlights and shadows simultaneously.  This tool does not change the underlying color of the image on the display making it a less obtrusive option than False Color overlays.


The waveform shows you the brightness of the image as a map, matching the screen from left to right.  This tool can also be set to RGB mode in which case it monitors Chrominance (Color) as well as Luminance (Brightness).  The RGB and RGB Parade modes will also help judge color balance (i.e. white balance), especially useful to underwater shooters.

RGB Parade (Histogram)

This tool shows an RGB Luminance Histogram that allows for easy judgement of each channel and the overall image's exposure.

Focus Tools

Pixel Zoom

Zoom in on any page by simply pushing the joystick up.  This allows for accurate judgement of critical focus.

Focus Assist

This mode highlights the sharpest areas of the image with an assignable color.  This allows for quick an accurate judgement of focus without having to zoom into the image.


This is a more subtle version of Focus Assist that does not change the underlying image as much yet still shows the outline of the sharpest parts of the image in an assignable color.

Nauticam NA-502B-S Underwater Housing

Nauticam has supported both the 501 and 502 models of SmallHD montiors and continue to evolve and innovate with the new NA-502B for the 502 Bright Monitor.  With more cameras offering video capability the need for an efficient and bright external monitor is only growing.  With Nauticam's bulkhead system, attaching and detaching the cable system can be done quickly in the field.  This means you can easily switch from a still photo setup to a video setup in between dives, quickly removing the monitor and even installing a magnifying viewfinder to the housing.  

The NA-502B housing provides access to all monitor controls, and the complete menu system is available in the housing, and at depth.

The Nauticam NA-502B housing features the rugged build quality and advanced manufacturing expertise our user base has come to expect.  The joystick navigation system used by the 502 Bright monitor is translated to four directional arrows, a center select button, and the dedicated “back” button.  The interface is simple, but elegant, and perfectly suited to the underwater environment.

The form factor of 502 Bright monitor is perfectly suited for an underwater housing, with HDMI / HD-SDI cables nestled between two readily available Canon LP-E6 Batteries that power the monitor.  

HDMI and HD-SDI are both supported by a single housing, providing an extremely broad range of camera support in a single underwater monitor system.

NOTE: This housing  comes with either an HD-SDI or HDMI connection pre-installed.  Unlike previous 502 models the 502 Bright is only available in one configuration that includes both HD-SDI or HDMI so choose the housing model that is appropriate for your camera, i.e. 17920 for HDMI and 17921 for HD-SDI.

HD-SDI Passthrough

The 502 Bright monitor can also function as a passthrough monitor, passing SDI to a surface monitor.  The NA-502B housings feature a second M16 opening that can accommodate another HD-SDI cable. HD-SDI can travel over longer distances making this ideal for surface monitoring.  Nauticam HD-SDI Cable Accessories provide a reliable way of transporting a video signal over long distances.

What's In The Box:

  •     17921 NA-502B Monitor with HD-SDI Input Support
  •     17916 Monitor hood for NA-501/502 Housing
  •     25625 M16 Vacuum Valve II (Pushbutton Release)
  •     25060 SDI cable in 0.3m length (for connection from camera to underside of SDI Bulkhead)
  •     25058 M16 SDI Bulkhead
  •     25072 SDI cable in 0.75m length (for connection from SDI bulkhead and 502 monitor)
  •     Mounting ball
  •     CR2032 Battery


Accessory Ports

  •     Front Top: 1 x M16 pre-installed with 25625 Vacuum Valve II
  •     Rear Bottom: 1 x M16 (normally used for 25028 M16 SDI Bulkhead for SDI-out)


Technical Specifications

Depth Rating: 100m
Weight in Air:1.41kg
Weight in Water: -20g
Dimensions: 222mm (W) × 122mm (H) × 77mm (D)



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