dictionary and back-focus

How to adjust back focus on a zoom lens

November 29, 2016

How to adjust the back focus on a television camera zoom lens. Most zoom lenses have a back focus adjustment ring which adjusts the distance between the rear element of the lens and the&n... (more)

What does a Focus Puller do?

December 02, 2016

What does a focus puller actually do? ... (more)