Back focus

The series of our video tutorials starts with setting the back focus of a broadcast camera. We give an overview about the topic, explain which equipment is needed and then practically show how to set the back focus.

[@gabrielsoyka]

curious, is this for zoom lenses only, or also for primes?

[@hydriusthepanda3141]

bruh... its for zoom lenses only because prime lenses have no multiple focal lengths where focus can be lost... you cant lose focus when zooming with a prime, cause zooming with a prime aint possible

[@gabrielsoyka]

@@hydriusthepanda3141 was just making sure, thank you

[@phant0mdummy]

​@@gabrielsoykathe answer was correct; but the dude answered you like a jerk

[@PHOTOaesthetics]

At what distance?

[@ChristopherWoods]

As far away as you can manage, if you can get at least 20 feet / 6 metres away that will be a good calibration.

[@johngood8742]

Varies from lens to lens. Can be read in the manual. 2-15m. Usually 5m.

[@johngood8742]

@@ChristopherWoods Long distance is not good!

[@ChristopherWoods]

​@@johngood8742 how so?

[@johngood8742]

@@ChristopherWoods
If the subject on which you do the back focus was too far away, after you open the zoom, the close subject may not be sharp. What lens do you have? Broadcast? Each lens has a user manual. Do as described, or try again, and again!

[@Davitekk]

Chi viene da Marco deve mettere like