Make sure to use the 2x magnification option when shooting - it doubles the resolution of the images (in 16:9 ratio, this means shooting at 3840 x 2160). It will take longer for GT to render each individual shot, but the pay off is being able to print full A4 pieces of paper if you so desire. I've printed a few relatively large images with minimal artifacts as large as 11 x 17 (though at that point, I've been using Photoshop to touch things up a tiny bit, for portfolio purposes).