SEATTLE—Primes are single focal length lenses, which can be designed with a relatively few optical elements and thus are capable of transmitting a lot of light to the film or digital camera sensor.

Telescope focal length determines image magnification. Field of view (FOV) shows how much sky your telescope displays. FOV is calculated using telescope and camera/eyepiece specs. Match telescope FOV ...

Digital cameras are nearly everywhere today. According to LDV Capital, by 2022, there will be 45 billion cameras in operation worldwide. In 2019, over 500 hours of video was uploaded to YouTube every ...

Macro lenses provide a unique ability to magnify tiny details to their true-to-life size, or at times even larger than life. They can reveal details our eyes may not be able to pick up on, allowing us ...