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By shooting a sonar beam at a subject, and then measuring the returning "echo", Redrock Micro's microTape Sonar Rangefinder helps measure the focusing distance of a subject up to 21 feet away from the camera.
The measurement is accurate to within an inch, and it updates and returns in real-time on a beautiful display on the side of the unit. The minimum distance the microTape measures is six inches, but it is nevertheless not designed for short distances, such as those shorter than an inch, or for distances between parts within a subject.
The sonar beam is powerful but it is harmless -- it can safely be directed at people and animals. However, what should be used with caution is a laser available on the microTape. A laser is available and can be switched on and off to help determine where the sonar beam is pointed at. This laser should not be pointed near a person's eys or an animal's eyes.
The microTape's display is a double-sided LED and is configurable. It can be set to read out feet and inches or centimeters. If the microTape is combined with Redrock's microRemote, the readout gets displayed on a wireless handheld that can be viewed remotely.
The microTape has a 1/4"-20 female thread at its bottom for mounting a camera rig or other support devices. It can also be used off camera, whereupon the offset from the camera can be programmed to ensure accurate measurements.
When used as a standalone, the microTape can be powered via an included 9V battery cable that has a 9V battery case on one of its ends, or via optional cables by a D-tap battery or AC power. The 9V or D-tap batteries are not included. The microTape draws very little power -- a single 9V battery will last over 24 hours. When connected to the microRemote basestation, microTape draws power from the basestation directly.
The microTape is a valid addition to productions that would benefit from accurate focus.
Measures focusing distance up to 21 feet by shooting a sonar beam and reading returning echo.
Accurate to within an inch.
Updates and returns measurement in real-time on a double-sided LED display.
Powerful but harmless sonar beam.
Readout can be configured to display feet and inches or just centimeters.
Can be combined with Redrock's microRemote for wireless remote handheld readouts.
Very low consumption power. Can be used with 9V battery, D-tap battery, or AC power. A 9V battery cable with a battery case on one of its ends is included.
Approximately 21' (6.4m)
Double-sided extra bright blue LED numeric readout
User selectable feet/inches, inches, centimeters
1/4" 20 female tap on bottom of microTape
Can also be used off-camera with range offset for accuracy
By 9V battery/D-tap battery/AC power via respective cables when used standalone (9V battery cable included with a 9V battery case on one of its ends is included), or from Redrock microRemote basestation when used with microRemote