ARRI Tech Talk: WCU-4 - Five Top Tips
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- čas přidán 8. 09. 2024
- ARRI Tech Talk: WCU-4 - Five Top Tips. Join Sean Dooley, Sales Manager of ARRI Australia, and learn more about the WCU-4. He knows five Top Tips for the WCU-4 and provides a deeper insight into the product. Learn more: www.arri.com/w...
A question from Tip 5 - Could you also daisy chain in the master grip with the 3 cforce motors and then set the master grip to Zoom to enable the operator to have zoom control? Operator could then have the zoom master grip as one side of his moosebars
Yes, this is possible with a Master Grip controlling either Focus, Iris or Zoom and is a great way to split one axis off. All devices (WCU-4 & Master Grip/OCU-1) will share the lens metadata, and the operator could even request control of any axis with the Override function, and then pass it back to the 1st AC on WCU-4. Check out this video for a tutorial: czcams.com/video/smoC1NMg_tg/video.html
Excellent
Thanks Sean!
Superb 👍 information this !!
I need to know about the luts !! How's liye working on lf this is same like sxt w or Normal body or something different
we love Arri!
Can you explain how to use manual ef mount lenses such as Duclos Mod Leica R's with a cforce rf mini motor?
Hi there - this set up is quite simple. All you need is power for the cforce mini RF, it will connect directly to a WCU-4 or SXU-1. If you are using a WCU-4 you can create a lens table so that you can see lens data and use a pre-marked focus ring, and you can also daisy-chain another cforce motor to control iris. CAM cables will give you run stop functionality with many third-party cameras and camera control on ARRI cameras. Here’s a playlist of tech tips on the cforce mini RF: czcams.com/play/PLqORVKxCwMdNkD_XrtjP4PaAoC1yrQq_G.html
Hi
Can you elaborate or point me at an explanation about how to have the DOF shown on the unit? It doesn't happen when I map lenses (focus and t stops). I know it has to do with COC (circle of confusion) but I couldn't find information about that. Is it exclusive to the mini LF or can it work on the mini as well? Thank you
Hi Etai. The depth of field indicator needs the focal length, T-stop value and focus distance to be able to do the calculation. If you map a prime lens you have to specify a focal length when you create the lens table, so only a focus and iris motor are required to be mounted on the camera. If you are using a zoom lens, all three motors are required for this to work. The depth of field indicator will adjust depending on which CoC value you have selected on the WCU-4, but it should always be available.
On a Hi-5, you can manually set a T-stop, so only a focus motor would be required on a prime lens. If you'd like more technical information, please feel free to ask your questions over at focuspulleratwork.com
a question from tip4
How can the lens turn without a motor?
Do all the ef lenses work?
The lens has a built in motor, like most still lenses with autofocus.
Sean, can you run a pan-bar zoom via umc-4 to a clm motor? If so, which cables would be required?
Yes, you can use an LCS-LBUS cable to plug the panbar zoom into the UMC-4 and control CLM motors.
Please sir, how can I known it easy way
I have a question about an RF motor. I’m using a WCU-4 with an cforce RF motor and cforce mini motor on a Sony Venice. Every now and then the WCU-4 loses the signal and the message “new focus motor” comes up and if I select yes it will ask me to recalibrate, sometimes during a take. I don’t think it’s a signal strength problem as the signal is always maximum bars. I don’t think it’s a power issue either as I power the RF with a D-tap cable and the cforce mini motor with a separate cforce to d-tap cable. Any ideas what it could be?
its a bug.. report to arri!
Hi Ralph - please contact service@arri.de and we’ll be able to help you out. Make sure your cforce motors are running the latest firmware, the latest SUP for cforce mini motors fixed a bug that sounds very similar to your issue.
do you still make the arri Alexa mini
Absolutely - the ALEXA Mini is a current product and we’re building and selling them every day.
Hello, my name is Dhir and I'm from India. Recently I was doing a feature film where we were using SXU-1 for pulling the focus and ARRI Mini with leica summilux c as our lenses. When our focus puller did the test with the SXU-1, he didn't face any problem with it and there was no loss of signal or any other probelm, but when we went for the shoot then the focus puller was facing the problem of losing the signal in middle of the shot and then he had to calibrate the whole thing again. This was a major issue that we were facing during the entire course of the shoot of losing the signal. Can you please help me with this problem?
Hi Dhir - there are many factors that could contribute to these issues. Please contact service@arri.de if you have similar issues again, they’ll be able to help out. In this case we’d recommend trying different radio channels, making sure that there are no obstructions to the antennas, and if possible using a spectrum analyser to coordinate the use of the RF spectrum - it’s possible that different departments are using devices which are conflicting with each other.
@@ARRIChannel So I think the walkie-talkie signal might be creating the problem here. Can you please elaborate about the "spectrum analyser to coordinate the use of the RF spectrum".
Moore Amy Lopez Brian Jones Jason