[Jabulani Jonny]

Hey guys,
Quick question here. I've never been one to do large prints from my 10mp Canon 40D. However, I am putting together a Gallery Wrap for a silent auction and I'm looking to print a 16x20 print.

To get the correct dimensions I open the RAW file in Lightroom, edit and crop to an 8x10 dimension (not size!). All it does is shave off the left and right edges to give it the proper proportions for a 16x20 (or 8x10). When I export the photo the size is 3240x2492, proper dimensions for a 16x20. However, when I pull up in PS to drop it into the gallery wrap template, my image size in inches is only roughly 12x10. Wouldn't the pixel size above be plenty large enough for a 16x20? Does it have something to do with the resolution I'm exporting with from Lightroom? For example, I used a resolution of 250 since that's the resolution the Gallery Wrap template uses. I guess if I use a resolution of 300 that the image might be larger, but I may be confused.

In this case, when I exported the file to PS, I actually had to upsize to get the 16x20 size that I needed at 250 resolution. It was still very sharp and looks good to me so upsizing didn't seem to be too detremental.

Any thoughts on this? I guess I was thinking that 10 megapixels should be able to pump out a 16x20 with no upsizing needed, but I may not be taking resolution into consideration.

Okay...go...

Thx. Jonathan