K20D, colour space and exposure

Haven't had the K20D for long and still familiarising myself with its strengths and idiosyncracies. Just noticed that if the same scene is photographed twice in quick succession (AE matrix metering) using a tripod but using different colour spaces, the image captured in Adobe RGB comes out over-exposed by 0.7 - 1 stop when compared with that captured in sRGB, which to my eye seems closer to 'correct'. I know that it would be easy for me to correct for this 'in-camera' or during post-processing, but is there a reason for there being a difference other than my example of the K20D being a bit 'flaky'?

Jon

I would stick to one colour space and learn the idiosyncracies of that. When you have the camera set to one, say SRGB, make sure that Photoshop is set to the same colour space.

Adobe RGB images may well look paler on your monitor, but it's not to do with exposure, rather the colour gamut itself.

Don't forget the monitor can only display the sRGB colour space - anything more is lost to view.

Thanks for the swift response, John.

I am hugely embarrassed to admit, so much so that I'm not going to go into detail, that there was a logical explanation for the exposure differences. As I mentioned, I'm still in the neurotic/precious phase of my affair with the new (to me) K20D and my overtly pessimistic nature (remember Neil from the Young Ones?) kicked into play when I saw the differences, bansishing, temporarily at least, all rational thought from my mind.

I have recently switched from sRGB to Adobe RGB for image capture, editing and printing. So far, when combined with my use of an Eizo TFT calibrated with a Pantone Huey Pro, and careful control of room lighting, I've been very pleased with the results. Although I've not yet gone to the extent of having my printer professionally profiled, the colour match between the on-screen and printed images is, to my eye, very good. As you say the on screen images look a little paler, but, with practice, I have found it possible to account for this when editing for print in all but the most extreme cases (i.e. where the dynamic range in the original is particularly wide).

Before closing, I'd like to thank you and the others on the User Team for doing such a fabulous job. In the short time since I joined the forum it has added hugely to my enjoyment of photography and being able to share images and experiences 'on-line' has done wonders for my confidence and motivation.

Kindest regards,

Jon