[Brady Marks]

Yes, the AV-HS400 is awesome, and the frame sync does just that but unfortunately it is busy syncing 3 unsyncable (no genlock) evi-hd1s

I’m pretty sure the black magic boxes are doing something nasty to my sync because if I correct the horizontal sync manual on the cannon camera and check this via a oscilloscope, the vertical sync is off.

I can get great sync between genlocked cameras if the all use black magic boxes. It is the combination of natively component and blackmagicly component signals that gaks

Thanks for your help, Ben

Is there a way to send the sync to the blackmagic conveters?

Thanks again
Ms Brady Marks

[Brady Marks]

Hello Bob,

I’m working with Riley on this project.

i think the crux of the issues is some signal alteration (delay?) introduced by the black magic box.

Here are the configurations:

this one works:

Canon XHG1S’ component video out and the Sony BRC component out are switched (via a Sierra Pro XL 816v3sxl) to a consumer HD TV

Both camera are genlocked via a external ref, created by a Panasonic live switcher (AV-HS400A)

All signals are 1080i60.

Switches perfectly.

not this one does NOT work:

we replace the Canon XHG1S’ component video out with a combination of the Canon XHG1S’ SDI video out and a BlackMagic SDI to Analogue Adapter, this configuration does not cut well, we intermittent amounts (0.25-0.5s) of black between cuts/switches.

A tech rep at Black Magic suggested that a 4 line delay maybe introduced.

– Ms Brady Marks