DJI Paladin
Administrator
Offline
|
Hi there. Sorry for the late response. A glare is an aberration caused by the error deflection of light due to some non-ideal factors when a lens transmits images. A camera lens is composed of a number of different individual glass lenses mounted together as a group, which are referred to as lens elements. When bright light passes through a camera lens, part of the light will be reflected by the surfaces of these lens elements. This internal reflection can cause ghost-like blobs of light to appear in the resulting image. Thus, glare is caused by the diffusion and reflection of light that occurs inside the lens. A camera lens will be coated with a very thin film on each lens unit to reduce the reflectivity on these surfaces. Film coating can reduce the glare but not fully eliminate it. Glare will happen when the lens faces bright light sources like the sun or high-power bulbs.
Common ways to avoid camera lens glare:
1. Use a lens hood: If bright light is just on the side of the affected area, a lens hood can effectively eliminate the glare. However, the lens hood will not work if the bright light is located solely at the front.
2. Adjust the lens orientation: Find a shooting direction that can eliminate the glare. In many cases, the glare at some points can be eliminated by a slight deviation of the light source direction.
3. Block the light source: Block the light source direction with a hand, cap, or paperboard at a position at the front of the lens. In addition, ensure that the blocking object is high enough, which is equivalent to an extended lens hood.
For aircraft, try the steps below:
1. Use a microfiber cloth (such as glasses cloth) to wipe the lens (rough wiping may damage the coating film).
2. Adjust the shooting angle, and avoid facing towards strong light sources.
3. Add an ND filter. |
|