12pin Broadcast Connector & Lens Motors

I'm curious, does anyone know of a way of connecting the 12pin Hirose Broadcast Connector at the front of the URSA Mini Pro to a lens motor like the Tilta Nucleus M as a means of powering the motor? I'm asking mainly as a way of shortening the needed cable to power the motor. And, as well to cut out the need for a D-Tap/P-Tap power connector all the way to the battery or a P-Tap Splitter.

Alternatively, for the URSA Mini Pro on the cinema camera level I would love for the 12K and future versions to replace the 12pin with an option that would enable this lens motor connection. After all the 12pin Hirose is more for Broadcast as opposed to cinema. So would be great to make it more cinema centric.

I found this ARRI cable for example. But doesn't say anything that confirms it could be used the way I'm asking about.
https://www.bhphotovideo.com/c/product/ ... l/overview

The 12 pin Hirose port will already drive S35 cine-servo lenses like the Canon 17-120mm or 25-250mm. I suppose a simple adapter could break out the 12v to power the Tilta motors but they use different voltage for control. Iris control, for example, on Canon or Fuji use something like 2-8v analog. I’m sure one could adapt the Hirose connector to drive a Tilta motor but it wouldn’t be a simple adapter. There would likely need to be a device in between to translate. For simple analog signals this can be acheived with potentiometers, for serial digital signals it will involve some learnin’.

A more realistic ask might be that Tilta use the same voltage protocols that have been in effect for the last few decades. Then it would be plug and play.

Good Luck

Fascinating info coming in. Keep it coming. Thank you guys.

So far from what Howard has said that it is primarily a Tilta issue with the needed Voltage, which is greater than what the 12pin Hirose Connection can do.

Still it drives me to a hope that in the future Blackmagic Cameras can have the extra ports including the lemo ports needed to power these lens motors. But this also calls for open standards.

The connector it self can handle 2A, but camera might not be able to output that much, and that might not be enough for the cine lens servos.

The lens servos for cine lenses typically need much more current than B4 lens servos, or any in lens servo.

Don't forget that the smallest box lenses are bigger than the largest Cine lenses. At full speed one can go from wide to full tele in about a second and the elements that are moving around are massive. The average weight of one of these lenses is about 20 Kilos and most of that weight is glass.

Good Luck

So far from what Howard has said that it is primarily a Tilta issue with the needed Voltage, which is greater than what the 12pin Hirose Connection can do.

It could actually work fine. I'm broadcast-centric so I'm always thinking wired control I completely forgot the Tilta are wireless. All one needs is to provide adequate current, and the Tilta are capable of 7-24v operation.

I had Alvin's make some custom 4 pin Hirose that would power a BM Micro Studio cam from a LDK 8000's prompter port. The price was super reasonable, maybe $50 each, and communication was excellent.

I actually would very much like to know how much current the BMD camera Hirose connectors can provide and how well is it protected for overcurrent.

Which is the question, the other half of which is the draw of the Tilta motors.

Good Luck