Anybody know the Grayscale working space Gamma value?

[daveh]

I'm converting an Epson 3880 to Piezography to print in black and white. Part of the workflow involves saving the image with an embedded Gamma 2.2 gray scale (they're using Photoshop and there's an option to set the Grayscale working space to 2.2). Does anybody know if that option exists in Paint Shop or maybe if there's a workaround?

Alternatively, does anybody know what the Grayscale working space Gamma value is for an image converted in Paintshop Pro (I'm hoping it might be 2.2 by default - reading up on it, 2.2 seems to be a bit of a standard along with 1.8 ).

Thanks for any help you can give me
Dave

[Jean-Luc]

Gamma 1.8 is for Mac computers.
PC and Windows use gamma 2.2
As PaintShop Pro was created for Windows, its inner colorspace produces a 2.2 gamma IMHO.
sRGB is "near" gamma 2.2

For more information, see:
http://en.wikipedia.org/wiki/Gamma_correction
http://fr.wikipedia.org/wiki/Correction_gamma

Cordialement,
Jean-Luc