58mm Digital Camera Lens Cap with White Balance
To measure the custom White Balance, simply place the White Balance Cap in front of your lens and capture the incident light (the light falling on your subject) while setting your camera's custom white balance. Professional DC/DV camera accessory to Mount Lens.. White Balance Cap brings you a true and creditable picture by the white balance. Camera Lens Cap designed for setting custom white balance in your digital camera. No post-production needed to save more time for shooting. Set the focus length to telephoto mode. Aim at the scene of photo source. Keep the white balanced value.