Saturday, June 28, 2014

DJI Phantom 2 Vision+ Quadcopter with First Person View HD Video Camera 3-Axis Gimbal




Product Highlights
  •     Digital camera with 3-Axis Gimbal Stabilizer
  •     Takes 14MP Still images and 1080p Video
  •     Wi-Fi Downlink for use with Smartphones
  •     iOS/Android App for control and monitoring
  •     Up to 25 minutes Flying Time
  •     GPS-Based Autopilot with Return to Home feature
  •     Stationary Hover with GPS Attitude Mode
  •     Visible LED Indicators & Low Voltage Indicator


   

DJI Phantom 2 Vision+ Quadcopter with FPV HD Video Camera and 3-Axis Gimbal is the 2nd generation  quad-rotor RC helicopter from DJI.  Its a small, remote control helicopter that is loaded with the latest technology, including: GPS; Wi-Fi; and a fully stabilized 14 mega-pixel wireless HD FPV camera with an F/2.8 lens that shoots video at 1080p/30, giving you a complete FPV experience.  The camera can take 14 mega-pixel, Adobe DNG RAW photos; and can record video in 1080p Full HD at 30 fps or 720p at 60 fps for creating slow motion effects.  The Phantom 2 Vision+, which includes not only a camera, but also a built-in 3-axis electronic stabilization.

Out of the box, the Phantom 2 Vision+ is ready-to-fly and the radio controller-- remote or transmitter -- is electronically tied to the quadcopter.  The transmitter features a line-of-sight range of up to a maximun of 2625 feet.



Flying the Phantom2 Vision+ is easier than previous models and a lot of fun.  To begin you power on the quadcopter, the remote, and the Wi-Fi repeater, then pair your phone with the repeater, and start the provided smartphone app. On the remote flick on the top right switch and the copter lights turn yellow confirming that it is connected remotely. Holding the copter, you will rotate it according to the instructions along the Z, Y and X axes to calibrate its compasses. once the remote lights turn green the copter is ready to begin flying.

The rotors are activated by pushing the two joysticks to the lower-inside corners. The left joystick controls which way it faces, altitude and rotation. The right joystick controls travel forward; backward; or side to side; pitch and roll.



Flying the Phantom 2 Vision+ takes some patience and practice.  It is best to take it where there is no obstructions and practice.  In a short time we were able to fly it reasonably well.  It is pretty easy to fly the quadcopter out of the remote's range and lose control.  Losing control isn't a problem. If it loses contact with the remote, using data from its GPS and altimeters, it will slowly start returning down to where it last had contact. Flipping the top right switch on and off will allow the remote to take control again.

The Phantom 2 Vision+ has an integrated GPS auto-pilot system that provides for position holding; altitude lock; and stable hovering; offering a constant stable flight. Most videographers will use GPS attitude mode to get the smoothest possible shoots. GPS attitude mode is an autopilot system that keeps the quadcopter stable and right-side-up when moving, and holds it in a fixed horizontal and vertical position whenever the controls are released.

The Phantom 2 Vision+ includes a Wi-Fi Range extender that will increase the wireless range of the smartphone used for FPV camera operation up to a maximum 2300 feet line-of-sight. The range extender mounts on the transmitter/radio controller/ along with the smartphone.

The Phantom 2 Vision+ has a "return home" feature.  Should the radio controller lose track of the quadcopter, the quadcopter will return back to the spot it was originally launched from -- very cool.

You will use the supplied iOS or Android smart phone app to control the camera.  Your smartphone can attached directly onto the controller with the supplied mount.  The app has up or down arrows to adjust the camera's tilt, and start/stop recording video with the press of a button, or capture a still. The manufacturer claims that it can send video to your phone in real-time, at 30 frames per second.  Our results did not bear this out: frame rates were substanially slower; and we encountered video "freezes". To capture stills in JPG or Adobe DNG raw files, you would snap a shot the app screen -- the screen  goes black for about 7 seconds. All image data is saved to a microSD card.



Image quality is fairly good, but there are sportscams that are better investment.  The Phantom 2 Vison+ video quality and captured image size is not as good as the GoPro Hero 3+ Black edition.  Phantom 2 Vison+ shows a fair amount of lens distortion; unatural colors; and a significant amount of ISO noise in low-light.

With the app, you can program a flight path with the 16 waypoint Ground Station feature. You can take photos and shoot video while the Phantom 2 Vision+ flight is controlled autonomously.  The app always offers a convenient flight radar that displays the current position of the Phantom 2 Vision+ in relation to the pilot.

The 5,200 mAh battery lasts for about 25 minutes of flight time. Once you have the flight practice, battery flight time will be sufficient and you can always carry a back-up battery.



Cons

While the manufacturer claims 25 minutes of battery time, when the battery goes below 10 percent, the rotors stop spinning and the quadcopter falls out of the sky.  While the copter can survive a short fall, if the copter is higher, say 100 feet, its fall may cause unrepairable damage.

The video and camera features need to be improved.  The "freezing" video and "black screen" with image capture is hard to work around.

The instruction manual needs to be improved.  There were many unclear sections and parts that just did not make sense.  I would guess that the original manual was in Chinese and was translated, albeit not carefully.




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