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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Fan Adaptive Preview Quiet Record - weird behavior

Andrei Goaga

Andrei Goaga

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On an Weapon Cf Helium, with latest firmware .102, the fans are set to Adaptive Preview Quiet Record and target temp is set around 43C.

When the camera is at 43 the fans are running in preview. But when I hit record, there is no drop in fan speed. They are as loud as in preview.

When I had the Epic Dragon this behavior was as it was supposed: when I hit record, the fans stop.

Since upgrading to Weapon Mg, now Weapon Cf, I can't understand what is wrong with this fan control mode. It doesn't seem to work as it should.

Any ideas?
 
Have you tried adding the current fan speed percentage to your overlay? Can be helpful in figuring out what's going on.
What happens if you change your target temperature to 53° immediately before you start recording, is there a drop then?
 
The best I can think of is to make sure your firmware is up to date and do a full wipe of your camera. You might have an odd, bugged out setting.
 
I ended up using it only on manual to control the noise. I see some refrences to fixing this in the latest 7.0.1 firmware, but I didn’t get a chance to test it yet.
 
I finally resolved the issue after calling RED and almost dropped the camera in for servicing :D It was really simple.

I was ignoring the warning that said something like: "Setting the target temp above 39C can make the fan suddenly start in rec mode" ... I thought that at least it should quite down the fans and then suddenly restart them if the temp was set above 39, but the camera wasn't even stopping them in the first place if the temp was set to 43C. And that is weird because the initial temp calibration comes at 42C standard after a firmware upgrade.

Long story short, on the last firmware, the fans work as expected in Adaptive Preview Quiet Record, if the temp is set at 39C.
 
Patrick Tresch said:
39c is low... does this limitation come with the new build?
Click to expand...

That is what I thought as well. But the RED tech support guy told me over the phone that it's best not to go above 40C anyway :) ... that seems like new info, as I always used my REDs at 43 - 44C. A temperature that I found difficult in high temperatures outside to keep. So I suppose 39C will be even harder. But didn't get a chance to test it in high temperatures yet.
 
Yeah, 39-40C is basically unusable outside of winter weather. I set all the cameras I use to 44-46C, and that still has a 55-90% fan speed, depending on the ambient temperature. 39C is basically 100% all the time. When using Adaptive/Quiet, the fans also take a very long time to get up to speed after cutting. Often they're still at "quiet" speeds by the time you roll again - meaning the camera gets too hot, the black shade is out of spec, and the fans start to spin up during takes.

Adaptive/Quiet is kind of a mess. I recommend sticking with adaptive, and switch to manual if you need to get more quiet.
 
My camera is set to 46c (48c is the highest possible in menu) lower makes the fan noise unusable.

First Time RED says any statement about recommended max temp.
Who was your tech?

Pat
 
Patrick Tresch said:
My camera is set to 46c (48c is the highest possible in menu) lower makes the fan noise unusable.

First Time RED says any statement about recommended max temp.
Who was your tech?

Pat
Click to expand...

I don't know exactly. I was in Heathrow airport with some time to spare and called RED UK to see if it's possible to bring the camera in for a quick check-up. That wasn't possible so we just talked on the phone. But the connection wasn't great, so I didn't catch the name. Maybe we should e-mail support and ask the question?
 
Been shooting in this lovely SoCal heat outside and inside without air conditioning. Found that using Manual mode and setting it to 50-55% fan speed for recording, and 100% in preview really helps, and is quiet enough that the sound crew don't have any issues. I have my Helium set at 42C, but we shoot very short takes, so the temp only goes up to 46C or so, and have enough time between the takes to get the temperature back down. Fans quiet almost immediately when we roll, and kick back up again as soon as we cut, which doesn't happen with Adaptive Quiet mode.

If it's not super hot, I just leave it on Adaptive.
 
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