Flying using FPV drone goggles is the most immersive experience you can have with a multirotor or fixed-wing. It can make you feel like you're in the cockpit, or it can make you sick. That's why It’s so important to buy the best goggle or head mounted display that is best for you. When you’re looking for a display to put on your head, you have two options; true wrap-around goggles, or a head mounted display. True goggles have two screens, with one eye each viewing one screen. This option is the most compact and portable choice for FPV. Head mounted display units have a single monitor. These monitor goggles are usually much cheaper than a true goggle option. Understanding terminology such as field of view, adjustable IPD, glass optics, resolution, digital head tracking and frequencies will help you pick the right FPV goggle.
The first decision you must make is to decide whether you want your FPV drone system to be analog or digital HD. The analog video system has been directly adapted from the security and surveillance industry with proven lowlight capabilities and low latency. Latency is the time it takes for the video that is being filmed to the time it shows up on the display. This is key for fast FPV flying and avoiding obstacles. Digital has only recently been developed to have low enough latency that it has quickly become adopted by many professional FPV pilots. The Amimon CONNEX ProSight is a more expensive option which will require its own FPV ground station to accept the digital feed and transfer it to your goggles via HDMI cable. It has improved detail but lower frame rate compared to an analog video feed. But the majority of pilots today still use analog because of its lower price and reliability.
Here is a quick overview of the terms you should know when choosing an FPV goggle or head mounted display;
FOV – Field Of View
This is the extent to which we can see or observe the world at any given moment. When using optical equipment such as FPV goggles there is always a restriction to what we can see. With FPV drone goggles, the field of vision (FOV) viewing range is between 25% to 45%. The higher quality and more expensive FPV goggles tend to have a higher FOV. The are many other aspects to what makes a great FPV goggle.
Interpupillary Distance or IPD: This is the distance between the center of the pupils of both your eyes. IPD technology is critical in binoculars and for FPV goggles. Each and everyone one of us is unique and have different shaped faces and distances between our eyes. For the best FPV flying view, it is essential the FPV drone goggles allow for both eye pupils to be positioned within the exit pupils of the goggles. If you buy fixed IPD goggles they may not fit your eyes correctly and the FPV flying experience may not be pleasant. The adjustable IPD is the best option.
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