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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 :)

Is this a rolling shutter issue?(see pic)

Noah Richoz

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I've seen many examples when using the RED with camera flashes or similar brief light sources causes a half exposed frame due to the RED's rolling shutter.
In the grab below our actors were using flashlights and moving them around quickly. The difference is that not only is there is a horizontal separation there is also a vertical one...something I haven't seen before. Rolling shutter? Something else?

mail
 
Odd, I can see it in the first post.

Here it is again.

4538563096_82a4c26e6c_b.jpg
 
weird, rolling shutter artifacts usually are horizontal across the frame, not vertical. Not sure what that is, but it doesn't look like a "standard" rolling shutter artifact.

Colin
 
Multi-readout

Multi-readout

Some sensors are multi-readout to get a faster rolling shutter.

At higher gain I saw something like that on the Acam dII also, a slight mismatch between the readouts maybe, on the Acam Sensor there can be two or four readouts, how many the M or M-X sensors use has not been published as far as I have seen?
 
FYI it's a MX sensor.
 
I have seen an improperly black balanced R1 cause an image similar to this once. It was only noticeable in dark scenes or shadow areas. Like a superimposed black shape in the image.
Was this only in one frame or the whole clip?
I would re-black balance this camera. sans any sensor issue itself.
 
It was just one frame on this particular shot. Being that it was just one frame it leads me to believe it is a rolling shutter issue. I did a black shading on the camera after it came up and it happened again the next day, same circumstance, bright flashlight whipping around in a dark cave.
 
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