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| p.1 #2 · p.1 #2 · HELP needed to enlarge an image to poster size |
I didn't know the 40D was capable of 6.3 Mp raw files, I thought the next size down from full was 5 Mp. Anyhow…
It isn’t a huge jump from 6.3 to 10.1 Mp, although neither is that suitable for poster sized prints. I would first try the bi-cubic smoother algorithm in Photoshop and see how that turns out. If that doesn’t work out, you could try something like Perfect Resize (formally Genuine Fractals) – there might be a free trial version.
My personal preference, if you are going to upsize it, would be to upsize it to the final print resolution and whatever ppi is going to be used as the print input resolution.
The best solution, of course, would be to reshoot. Just out of interest, why do you ever shoot at less than full size?