Color conversion 2

[koxl]

I got a two color (grayscale and orange) document (visit cards montage) to prepare for press. Author (dont ask) made links in RGB. There would be no problem (Photoshop conversion), but i have to make it in two separations (spot and black). If i set color in Photoshop from Pantone swatches, it's not seen as spot in Indesign. Second problem is, that black is not seen as grayscale (K) value, but as rich black variations. Are there any tricks out there to meet my demands?
thx

 

[eugenetyson]

Check out my video on how to add spot colours to Photoshop files.

http://ie.youtube.com/watch?v=CZKlq2OpFKI

And it seems to be more of a photoshop problem more than it is an indesign problem.

 

[apepp]

...worth noting that adding alpha channels to images will end up overprinting, which means a pixel knockout will need to be applied to all other effected plate seperations...

...spots are also dealt with in photoshop using the duotone option in image > mode > duotone. To get there you need to be in greyscale first...

...ensure your transparency blend space in indesign is set to cmyk and not rgb...

Andrew

 

[koxl]

Thank you very much, both. Alpha and grayscale modification work. Right now i dont know exactly, but it looks like it will work good for film. Ill stay in touch tommorow!