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Pro 4 Camera
The VideoRay Pro 4 is equipped with 2 high resolution color cameras.
The main camera is located in the forward pressure hull and the second camera can be positioned on top of or
underneath the ROV. The forward camera tilts 180 degrees while the second camera tilts 180 degrees and pans
360 degrees providing full hemispherical coverage.
Both cameras are equipped with wide dynamic range and backlight compensation to deliver the highest quality
images even in difficult lighting situations. The cameras are optimized for underwater use and offer ultra low-light
sensitivity (0.0001 lux).
There are more than 20 user controllable settings that can be managed from the surface including automatic or
manual switching between color and black and white modes, an automatic shutter and digital zoom capabilities.
Camera tilt and focus are now controlled using servo motors, which allow faster operation, precise positioning
and feedback as to their current position. Position information for tilt and focus is displayed in the user interface.
Pro 4 Lights
The new highly efficient and high intensity LED lighting provides 3,600 lumens at a color temperature of 6500K.
This intensity and color temperature provides significantly improved penetration at depth. The intensity can be
boosted to 5,700 lumens and LEDs with different color temperatures will be available in the future.
The forward light reflectors have been engineered to distribute the light evenly throughout the camera tilt range,
such that at 45 degrees vertically, the Pro 4 projects more light than other ROVs do straight ahead at the same
distance.
Like the Pro 3, the lights are positioned outside the main hull to provide the greatest separation from the camera
and to make servicing easier (although the service rating of the LED lights makes servicing virtually unnecessary).
This separation is extremely important in minimizing backscatter due to suspended particles in the path from the
lights to the camera target, and results in higher quality images.
The setting of the intensity of the lights is displayed in the user interface.
Pro 4 Compass and Navigation
The Pro 4's navigation system includes a 3 axis compass, accelerometer, and MEMS Rate GYRO. These
devices are mounted on a single board and are the same as one of the nodes in the KCF Technologies Smart
Tether.
You do not need to calibrate the compass.
The heading of the ROV is displayed in the compass and its attitude (pitch and roll) in the attitude indicator.
Pro 4 Depth Gauge
The Pro 4's depth gauge is much more sensitive and has about 10 times the resolution of the Pro 3's depth
gauge. You do not need to calibrate the depth gauge.
Auto-Pilot Modes
Auto heading is now included in addition to auto depth, and both features now support the traditional "set and
forget" mode and a new "go to" mode.
Pro 4 Additional Sensors
Temperature and humidity sensors have been added to the internal components of the Pro 4 ROV.
Pro 4 Float Block
The Pro 4 float block has been redesigned to be more hydrodynamic, more durable and provide variable
floatation to match the accessory payload.
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