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View Full Version : Quality Poster (help!)

tagger
10th of May 2002 (Fri), 17:20
I have a couple of shots from a Canon D-30 that I want to print poster size. I have access to a ColorSpan Lightwave series XII. What do I need to do with the file from the camera in order to get a high quality poster? 24"X36" Any suggestions of which graphic software to use?
Thanks,
Taggs
chris maddock
11th of May 2002 (Sat), 00:52
Ideally you need to upsample your images to the size you want at 250-300 dpi. There are various ways to go about it. What software do you have?

If you have Photoshop already, then Fred Miranda offers his Stair Interpolation action at; http://www.fredmiranda.com

Alternatively, a guy named Stephen (NYPhotographics, I think) posts in the DPReview Canon SLR forum. A few months ago he posted some Photoshop actions that he uses to blow his shots up to 60" or more! The URL for his posting is; http://www.dpreview.com/forums/read.asp?forum=1003&message=2127581

Other people swear by a program called Genuine Fractals, I can't comment on that though, as I haven't used it.

I have had a couple of 20"x30" prints done, and I upsampled in Photoshop to twice the final required size, applied a fairly aggressive unsharp mask, then used Irfanview (freeware from www.irfanview.com) to downsize to my final 20"x30" @ 300dpi, using the Lanczos resample setting. They came out a treat.

If you don't have any suitable software yet, then give Ifranview a try. The only thing that I think is missing is an unsharp mask, but it does have a sharpen that isn't too aggressive and could be applied in several stages.

HTH
Chris
chris maddock
11th of May 2002 (Sat), 00:57
Hehe, I bashed that lot out including looking for the DPReview thread, then I noticed that Stephen's been posting in here, starting the current thread "Some D30 vs D60 samples".
He's also posted the URL for his upsizing actions.

KRs
Chris
tagger
11th of May 2002 (Sat), 10:37
I appreciate the information. I haven't chosen a software pack yet. Onyx postershop is one that I have been reading about, but have not gotten user feed back on it. I just starting some digital photo classes and this site has been a great tool in pointing out all that I don't know....which is quite a bit...!!
Thanks again.
Taggs