The image formed by concave mirror is always real except when the object is placed between pole and focus. The image formed by the convex mirror is always virtual. The radius of curvature is double of magnitude focal length.Answer and Explanation: ...
Usually, the below written mathematical relationship between the focal length of a lens, the refractive index of the lens's material is formed, and the radius of both curvatures of the lens is shown by the lens maker for...
Odd seeing in 30mm lens-What is the cause?howard
Lighting is a key element to the mood of any film. It can be the difference between a happy and cheerful scene or a mysterious and ominous scene. One of the most important lights in any lighting setup is the key light. The key light has a heavy influence on how a shot looks and fee...
The focal length of a lens is the optical distance (usually measured in mm) from the point where the light meets inside the lens to the camera’s sensor. “You can zoom in on your phone, but that’s not changing your focal length. That’s justcropping your photobefore you actually tak...
If for a lens, F=−20 cm, what is the power of the lens ? View Solution A converging lens has a focal length of 50mm. What is the power of the lens? View Solution Knowledge Check The radius of curvature of the convex surface of a thin plano-convex lens is 12 cm, and the ref...
HP compute and Poly Lens Room app is an innovative combination designed to streamline the deployment, management, and control of your room-based video collaboration setup. With features that cater specifically to the needs of IT administrators and end-users, this powerful duo offers a comprehensive...
What is lens aperture? Learn how aperture affects your photos and how understanding f-stop settings is a foundational skill for great photography. Explore Photoshop Aperture controls the amount of light that enters your camera. From vintage muscle cars to a luxurious Mercedes or the newest Lamborghi...
Small apertures can be a gift to photographers. On bright sunny days, they prevent an image from being washed out, and they save the physical film from being burned by intense sunlight. But there’s a downside to smaller apertures when it comes to achiev
The tradeoff, however, is focus breathing. Focusing on internal focus lenses causes the internal element to move independently of the other lens elements, causing a slight change in focal length. There is a balance between how silent and optically perfect the lens is versus how much focus breath...