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Old Technique

Started Sep 7, 2018 | Discussions thread
Tom Axford Forum Pro • Posts: 10,067
Re: Old Technique
2

Holger Bargen wrote:

If you take a photo with a digital camera your sensor will gather the colour nformation from 3 sensor types seperatelly: each pixel has at least on red sensor, one blue and one green sensor. At least if you have a Bayer sensor.

Actually, it shouldn't matter what type of sensor is used.  The digital image can be separated into R, G and B channels, so it should be possible to take three separate images without any filters on the camera.  Then combine the three images by taking the R channel of the first, the G channel of the second and the B channel of the third.

I've never tried it, but I see no reason why it wouldn't work just as well as using filters over the lens.  In fact, it may possibly be better.  It's certainly easier and quicker to take the three images.

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