Choosing the right focal length is a crucial part of the creative decision making process for a photographer. You can have the best camera for beginners, but if you don't truly understand focal ...

Focal length is the optical distance in millimeters between a camera lens and the sensor or film. It determines the height and width of the scene being captured, known as the "field of view." ...

Laser Research Optics has introduced a line of OEM-compatible CO2 laser lenses that feature a selection of focal lengths to let virtually all popular lasers become optimized for engraving signs.

Samsung's Galaxy S26 Ultra is rumored to bring one of the bigger camera upgrades seen in recent years for the flagship model.