Author Topic: Shooting raw monochrome?  (Read 1094 times)

70MM13

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Shooting raw monochrome?
« on: November 04, 2017, 09:32:06 PM »
Hi all,
I'm curious if there would be any way to set ML to shoot raw video in monochrome, potentially to reduce the amount of data being recorded.
I have no idea if it's possible to do this at the lowest level, and even if so, would it actually reduce the amount of data?
Obviously, I'm interested in shooting monochrome.
Thanks.

Walter Schulz

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Re: Shooting raw monochrome?
« Reply #1 on: November 05, 2017, 11:12:33 PM »
You *are* shooting monochrome. Sort of. http://www.red.com/learn/red-101/color-monochrome-camera-sensors

Or to answer your question: For your cam it will not reduce the amount of data to process in camera for raw recording.

70MM13

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Re: Shooting raw monochrome?
« Reply #2 on: November 06, 2017, 01:15:43 AM »
Right.

Thanks for the reply.

bpv5P

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Re: Shooting raw monochrome?
« Reply #3 on: November 06, 2017, 02:48:04 AM »
Unless we only record Green channel (stop recording of Red-Blue) and interpolate later... but, even if that's possible, it would have a very bad quality (aliasing/moire).
@70MM13 there's a option in RawTherapee in the demosaicing panel called "monochrome".

70MM13

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Re: Shooting raw monochrome?
« Reply #4 on: November 06, 2017, 05:23:12 AM »
Nice.
Thanks for the tip.

katrikura

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Re: Shooting raw monochrome?
« Reply #5 on: November 07, 2017, 07:09:39 PM »
Interesting link, however, I would also like to know if someone has experience in black and white raw recording with magic lantern and if you should have any special consideration, in terms of configuration, to get the best result.

Thank you.

bpv5P

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Re: Shooting raw monochrome?
« Reply #6 on: November 07, 2017, 08:02:16 PM »
You can't recording RAW in b&w on normal canon cameras. Learn how bayer filter works, so you will understand that.
Some Leica digital cameras are especially designed for b&w photography, but that's not the case here.
About configuration, there would be no difference from color recording.

axelcine

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Re: Shooting raw monochrome?
« Reply #7 on: November 07, 2017, 10:22:17 PM »
Raw is always in color. Even if your raw photo editor transforms the picture according to any chosen picture style, the basic raw file is always in color. Convert in post. If raw could be filtered, it would not be raw any more, would it?
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ItsMeLenny

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Re: Shooting raw monochrome?
« Reply #8 on: November 08, 2017, 10:29:27 AM »
It's not exactly in colour, every pixel is in a value form which could be considered greyscale, but it knows which ones are which colours, red green and blue, but the bayer filter filters out the colours for each greyscaled pixel.

I was about to say The Red cameras released a version of their camera with no bayer overlay, but then I looked at the link first posted and I think that's what it is talking about.

I did hear something, it may just be hearsay, somebody carefully scraped the bayer colours off their sensor.