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Cinetronic HD7


Jens Piotrowski SOC

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Jens would be running the same software version as I am, I don't think any new one has been released in the last few months. Is it possible that this is a RED One firmware issue? Perhaps if the camera is running an old/buggy firmware (as we all know RED tends to release these) that could be the root of the problem. I didn't happen to catch what version the camera that I was using had installed.

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update:

 

I have spent 2 days now with Greg Bubb and Chris Bangma trying to figure out what's going on.

 

Here's the latest. When feeding a composite signal from the Ultimate into the Cinetronic the screen graphics overlay for the sled and PDL are causing the back-light on the Cinetronic to dimm down about 30-40%. We think it has to do with the level of brightness of the graphic. The sled menu & PDL have multiple settings for the brightness. Low,Mid,High & Max. At Mid the value of the white is 100% or 0.7V of the the video signal. If you set it higher than Mid, let's say High (150%) or even Max (200%) the Cinetronic monitor compresses (limits) the overall value of the brightness of the image. To avoid that, set the on screen /PDL brightness to Mid or Low.

 

I have yet to test if that happens with very bright images in general without any kind of graphics overlay. I will do this next.

 

As far as I can tell this is a analog (composite) signal problem only and HD-SDI should not be affected.

 

if somebody else with Ultimate/Cinetronic setup wants to test and confirm this, please do so.

 

Jens

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We tested Jens sled today, and found the on screen level output from the XCS sled in high and max to greatly exceed the NTSC standard. The output on max was double the max voltage for NTSC, and the high setting was 50% too high. It is recommended to run the PDL on screen display at the mid or low settings, since these are the only 2 settings which are within NTSC spec.

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Andrew: my problem has persisted for a long time, and has followed me from the SD sled to my current HD sled, different batteries, different power cables, etc. I haven't flown a RED MX lately, I'll report back once I do. I've got an Epic job next weekend.

 

I've done the exact same thing Will, tried new batteries, cables, bnc connectors, etc.

 

I've had this flickering problem in HD with the Red MX as long as I've had the cinetronic, which I received in August '11. The power cycling does not work with the MX, so I need to go SD anytime I use that camera.

 

The flickering occurs with the Epic and Alexa, but based on the advice of Eric Fletcher on how to power cycle the monitor, this seems to always solve the issue.

 

Chris has been great in trying to help me by switching out many of the monitor components with new ones, but the issue still persists. I'm just hoping the new housing and software solve the issue when they come out..

 

When functioning properly, it's a fantastic monitor.

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Chris has been great in trying to help me by switching out many of the monitor components with new ones, but the issue still persists. I'm just hoping the new housing and software solve the issue when they come out..

 

When functioning properly, it's a fantastic monitor.

 

I'll report back once I've tested my reclocking distribution amplifier on my next shoot, maybe that'll solve the problem?

 

Alex, do you have the 4:3 or the 16:9 monitor?

 

I too have very high hopes for the upgrade.

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Chris has been great in trying to help me by switching out many of the monitor components with new ones, but the issue still persists. I'm just hoping the new housing and software solve the issue when they come out..

 

When functioning properly, it's a fantastic monitor.

 

I'll report back once I've tested my reclocking distribution amplifier on my next shoot, maybe that'll solve the problem?

 

Alex, do you have the 4:3 or the 16:9 monitor?

 

I too have very high hopes for the upgrade.

 

according to his website, he has the 4:3 6.5" version

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"I too have very high hopes for the upgrade. "

 

the new version, will indeed be almost entirely new, since you will only carry-over the display itself. it has a proprietary controller board and software, a new dc-dc converter, connectors, housing and will be modular, so that you will be able to upgrade let's say the display to a better one once available....

 

 

looking forward to it....

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