It’s pretty small, at 55mm in diameter, 37mm in length ... a screw-on lens hood, and you can add a UV filter inside for weather-sealing, too. It accepts the camera’s lens cap and doesn ...

The F-number of a photographic lens is a measure of its light-gathering ability, and is expressed as its aperture diameter ...

Washington Capitals star Alex Ovechkin is one of the most heralded players in NHL history. The legendary forward has already etched his name in history, but he's still chasing Wayne Gretzky's all ...

This article asks 3 quick questions all on the subject of lens flare. Learn why you get lens flare, how to reduce it or, alternatively, how you can use it to your advantage.