CP+ is the biggest camera event in the world and CP+ 2024 kicks off tomorrow in Tokyo with many new camera and lens announcements expected. Ahead of the event, Cosina has given us a peek at several ...

A professor of mathematics at Vienna University, named Joseph Petzval, designed a lens that had a fast aperture of f/3.6. While this may not sound so exciting by today’s standards, Petzval created ...

The Petzval lens, designed by a mathematician in 1840, was one of the first portrait lenses to change the art of photography because its design allowed enough light into the camera for photographs to ...