I am looking for some sound advice on how to sharpen for canvas printing after having enlarged images to sizes A0, A1 and A2.
I found this guide on the net http://www.cambridgeincolour.com/tut...sharpening.htm ,but it does not solve my problem as it does not specifically deal with enlarged canvas prints.
I do some input sharpening on my RAW images in Lightroom 3 and then the output sharpening in CS5. I have read Scott Kelby's suggestion of a double luminosity unsharp mask at 120%, radius 1 and threshold 3, but really do not want to fool around with test prints on today's prices!
Does somebody have some rule of thumb settings to give me a head start on sharpening for canvas prints of the mentioned sizes, or should I simply do the output sharpening in Lightroom 3(sharpen for matt print, high) and leave the rest (enlargement AND the sharpening thereafter) to the lab?
If necessary, the answer to the question whether I should enlarge with bicubic or bicubic smoother in the Image Size box, will also be appreciated...