Category » Geek Articles

Equipment

Mythbusting: Parfocal Photo Zooms

By

About twice a week I get a call from a photo-videographer wanting to know which photo zoom lenses in a certain focal length are parfocal (stays in focus while changing focal lengths). It’s understandable why they would ask; a superb photo zoom is 1/10th the cost of a good video zoom. They get pretty mad […]

Equipment

How to Clean Your Camera Lenses (And Check For Problems)

By

In the past, Roger has shown us time and time again, that internal dust and other artifacts rarely have an effect on the image quality produced by your lenses. With how complicated the optics in a lens are designed, lenses are rarely affected by these small flaws such as lens dust. That said, every piece […]

Equipment

The Long-Awaited, Scary and Amazing Fuji Lens Teardown

By

For, oh, about 2 years now, every time we do a lens teardown I get emails from Fuji shooters asking me to tear down one of their lenses. There are several reasons we haven’t. For one thing, we have far fewer copies of those lenses so there is less reason to work on them. Since […]

Equipment

A Peek Inside the Leica Vario-Elmarit-SL 24-90mm f/2.8-4 ASPH

By

We always get excited when a lens comes out with some new technology or major changes. This time, the new technology came from an unexpected source when Leica released the¬†Vario-Elmarit-SL 24-90mm f/2.8-4¬†ASPH lens. I know most of you don’t think of Leica as technological groundbreakers and most of you probably barely noticed the release of […]

Follow on Feedly