May 14, 2023


The BNC connectors on the ALEXA 35 are custom 12G BNC connectors that can be exchanged from the outside with a special ARRI tool.

You can see how easy this is to do by watching a video at this link.

Having user replaceable 12G BNC connectors makes a lot of sense. Any connector that protrudes from a camera is always going to be a potential point of failure regardless of how well it is made. If an onboard monitor falls down and it is connected to a BNC port it has the potential to rip that connector out or damage it. An SDI cable could also potentially get snagged on something and cause damage to a connector if the force is strong enough.

Matthew Allard is a multi-award-winning, ACS accredited freelance Director of Photography with over 30 years' of experience working in more than 50 countries around the world.He is the Editor of and has been writing on the site since 2010.Matthew has won 48 ACS Awards, including five prestigious Golden Tripods. In 2016 he won the Award for Best Cinematography at the 21st Asian Television Awards.Matthew is available to hire as a DP in Japan or for work anywhere else in the world.