One of the main prerequisites for any professional multicamera production is to be able to control the exposure of each camera; to make them match each other.
In older camera's it was also necessary to control the pedestal and colours as an on going function.
But now with more modern camera's the pedestal and colours really only need to be set up prior to the event as they have far better flare compensation and very stable colour control.
Of course there are minor issues with gamma settings between different types of camera's, but no where near the nightmare of a few years back where you would NEVER use different types of camera's on the same shoot.
To use a camera with remote camera control units (CCU) can be very expensive. I use to run an OB company where we had 16 triax camera's, each costing in excess of $60,000 EXCLUDING the lenses!
But now I do more or less the same thing but with FAR cheaper camera's, albeit while missing many features of the more expensive camera's.
So I use ATEM switchers including Studio converters with a few Blackmagic Studio Camera's (and of course my GVG control panels). But I also want to add to the mix some 3rd party camera's; in my case some Sony EX 1's and some older HDV camera's such as the Sony Z1 and Sony FX 1's that connect using the camera converters.
The BMSC's are great because they give me full CCU control. The other 3rd party camera's can be initially balanced to look very much the same as the BMSC, except there is always the need to call up the camera operator and get them to adjust the iris; bummer.
I have now developed a remote iris control for my 3rd party camera's that can be controlled by the ATEM CCU control panel (also available on my GVG hardware panel). On the 3rd party camera's I attach a servo motor to the iris ring.
I connect these using a network cable but am in the process on controlling them over a wireless network; NO CABLES!
These controllers also provide prog/prev tally lights for when using without the camera converters.
They are also great for my wireless camera's using HDMI transmitters. Also, they can be used with the BMSC when you have a B4 lens fitted because there is currently no interface for them between the lens and the camera body.
I will be selling these IRIS CONTROLLERS shortly and will also be looking at adapting them for many other brand of 3rd party camera's which will include interfacing to the LANC where many have the Iris control and will avoid having to attach the Iris servo.
I am also in the process of making dedicated CCU remote panels for the ATEM; one for each camera, that controls all the features as the ATEM software control panel does. Obviously only the Iris can be controlled on the 3rd party camera's ATM.
If anyone is interested in the above feel free to contact me and I will see what I can do.
Also, if anyone needs a GVG control panel to control their ATEM, contact me; I currently have one on eBay
and have a few more making their way through the system.