Adjusting Back Focus On An XDCAM EX Camera

One of the most frequently asked questions that I receive about the XDCAM EX cameras is how to adjust back focus. Like all ENG style lenses, the lenses that come with these cameras can sometimes develop back focus issues over time. The cameras all have a method for adjusting this, and luckily the PMW350, PMW320, EX3, EX1R, and EX1 all follow a similar procedure. Watch this video to learn when and how to adjust the back focus on your EX camera.

DSCLabs has some great charts for checking back focus, they also offer a couple free ones that you can print yourself.

Note: To access the hidden menu on the EX1 / EX1R, hold the Menu, Scroll Wheel, and Cancel button at the same time. DO NOT adjust anything else in this menu.

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  Science & Technology

[Dean Kumar DK]

hi thanks for this. great video. does the chart have to be a certain size?

[AbelCineTech]

Apologies for the late response! The smallest size I would go is letter-size. - Ian

[Orf]

how far from the chart should you shoot?

[AbelCineTech]

We found you can be as close as 4 feet from the target. Sony recommends 8 feet though.

[gollum2323]

Dude thanks for helping me through this. This sure beats manually adjusting the ring now. :)

[AbelCineTech]

Glad you found it helpful! :)

[Dean Kumar DK]

great. thank you. i did mine on A4 paper

[klarock03]

Thanks AbelCine!!! Both of our Ex-1's needed it done around the same time. Our Ex-3 and 350 have never needed it redone since out of the box. Great tips-thanks for posting!!! Wright-Patterson Air Force Base Video thanks you!!!

[Maina1919]

where in the camera menu do you find the back focus barton on an ex1r?

[historiefabrikken]

Works perfekt - thanks a lot.

Adjusting the EX1R; You need to put the gain on H and LCD.B.Light to off before you can access the service menu.