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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 :)

Another sensor issue?

NormLi

NormLi

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The camera was out yesterday (Friday the 13th) and was reported back with the right 3rd of the image on the LCD to have a weird 'false color/infrared' type look and that it was actually recorded into the image when they played back to check. It would go away and come back unexpectedly. They did a black balance and it disappeared and reappeared. Then the camera was dropping frames like crazy I hear...sometimes 4 frames...sometimes 40 frames. Mostly on sticks and some handheld but I NEVER had any problems with the camera yet like this and all of a sudden they all show up. Any ideas?

Anyone else having this problem??? It set the music video back 3 or so hours.
 
Maybe a bad switch or connector that is accidentally triggering the viewfinder false-color mode? Do they know the camera has a false-color mode, intended for judging exposure, is that what they are seeing?
 
They know there's a false color mode but that usually takes up the entire screen right? This was just the right 3rd of the image and the rest of the image was fine. When recorded, it was still in the playback while other clips were fine when they toggled through the clips.

Even if it was a bad switch or connector, that should only affect the viewing, not the information that is actually recorded right?
 
Does it look bad only during playback in camera, or is it also on the file in RA or Redcine? My first guess is a bad connector or bad display chip on the LCD display that is sometimes flaking out and showing the false color. Never seen anyone else mention this issue. But of course, the problem is inside the camera if it's also showing in the final R3D on your laptop. Dropping frames could be caused by many things, but I wonder if it is also a connector problem.

(The crew didn't perhaps accidentally drop the camera, and neglect to mention it...?)
 
jbeale said:
Does it look bad only during playback in camera, or is it also on the file in RA or Redcine? My first guess is a bad connector or bad display chip on the LCD display that is sometimes flaking out and showing the false color. Never seen anyone else mention this issue. But of course, the problem is inside the camera if it's also showing in the final R3D on your laptop. Dropping frames could be caused by many things, but I wonder if it is also a connector problem.

(The crew didn't perhaps accidentally drop the camera, and neglect to mention it...?)
Click to expand...


I'm not sure about the playback in RA/Redcine but the playback in-camera shows it for sure. But if you go to the previous clip that didn't have it during record in playback, it's fine...then jump back to the clip with it...and it's there. I think it would show up in Redcine. My friend was the on set tech on the shoot and said everything was treated like a baby by the camera assistants...nothing dropped/banged/etc and treated gently.

He tried a few different cables and the frames were dropping too. I never ever had this problem on many shoots and other rentals as well. What else would cause drop frames....violent/shaky camera movements, heat/cold, g-force, humidity, bad cables, switching format modes (4K to 2K to 4K on the same drive), etc?

Norm
 
Did you call RED and put in a ticket? Sounds like there could be a problem with that camera, never heard of any issue like that before. It could be what happened to the camera on the way to the shoot :) not necessarily how it was being treated when it got there. It seems like there are a few RED one's out there that are giving the rest of our cameras a bad name :) Seriously though, call RED, they have great support, they'll figure it out and you'll be back to good.

All joking aside, I feel for you on having problems on set, they're never fun, just be glad you weren't the tech. The 90 seconds it takes to boot the camera has almost got me beaten.
 
The dropped frames may have happened because of reverb and excessive volume of the drums being hit constantly causing instability of the RED drive. This was what I spoke to Travis about. I tried rolling the camera yesterday non-stop for 10min...shaking it, walking with it, static, and no problems. Whenever the band played in the shot, it would drop frames. When the camera was on break at lunch (no singing), I heard there were no problems while the on-set tech would try running the camera...

Could this actually be true? CF Cards would be the way to go on these types of shots then (explosions, loud music, banging, etc...)
 
Think resonance! There might be certain frequencies in loud music making something vibrate badly.
I've seen this with tube cameras – yes, I'm that old ;-)

I'd give CF a try.

Regards,

Uli
 
Hello everyone,

Please check out these two links that I uploaded:

http://www.yousendit.com/transfer.php?action=batch_status&batch_id=R3oyaklqSEIyWGMwTVE9PQ

One is a Purple dot when pointing at the sun.

We were on build16, n12 + n3, t16, mk3 superspeeds. very strange effect...i don't like it..

The other photo shows the 3rd of the screen with the weird infrared that actually recorded into the image...scary. This has happened about 3 times now and all of a sudden goes away on it's own.

Comments?

Norm
 
Wow. The purple sun dot thing is well known and documented, but the sensor thing is bizarre!

What does RED have to say about it? Have you spoken to them directly?

Jim
 
Wow... that image is nuts. I had a very small vertical line problem.. but it disappeared on build 16/black calibration. This looks serious screwed in my professional opinion.
 
Weird.

I would give your rep a call and see what they say. I have some footage with the "dot", but I haven't seen anything like the other effect.

Best,

ATF
 
Norm,

This is Travis here on my off-duty account.

I am passing the image along to the appropriate people here and we will have an answer for you soon.

Check your inbox soon as I have a few setting questions for you about the settings.

Thanks,

Travis
 
Norm, please let me know if you are talking to anyone at RED already about this (before Travis) so we can touch base with them. if not, Travis has the ball officially rolling on RED's end.

BC
 
I have not touched base with anyone at RED about this so far. This is the first time officially but I think I did mention to Travis (Hey Travis) on the phone about 1.5 weeks ago about this problem briefly. Hopefully we can get this solved soon as I have a feature coming up July 15th here for 8 weeks that I am DP'ing.

Thanks guys,

Norm
 
I had dropped frames with the drive because of loud music (probably bass) on a music video shoot. Changing to CF card fixed the problem. I don't know about the weird frame issue though. That could be related. I don't know.
 
Please contact support directly first for the fastest and most direct support as things get properly tracked and distributed.
 
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