2016Monitors forum
Alexa Mini SDI sync problems with external SD monitor via downconverter
What the thread found
- An Alexa Mini may experience intermittent sync loss when outputting to an SD monitor through a downconverter on the first SDI BNC output.
- Changing the SDI output format from 24fps to 60fps resolved sync stability issues in one case.
- The SDI output format setting on the Alexa Mini can affect compatibility with downconverters depending on the shooting format being used.
Depends on
- The 60fps solution was not fully tested before the next shoot, so long-term reliability is not confirmed.
- The issue may be specific to this particular camera, downconverter, and cable combination rather than a universal problem.
- No investigation was completed on whether the second BNC output would have the same limitations.