Ok,
so back to the initial question: what is the optimal image size for portfolio standard image, assuming users are not sizing their window more than 1280px wide? Eg. what is the width of the content area then?
For reference, check how your demo image scales here when resizing browser window:
http://dante.swiftideas.net/portfolio/saap/
I don’t want to use 2000px wide images as in the above demo page. They are way too slow to load and I don’t have such large images.
Thanks for your patience! This is important since I have a lot of images to process and I want them to look pixel perfect.