Thanks bloke
It really is a fantastic little lens. I don't know how they got such great performance out of such a small, light and cheap lens. I wandered around the whole day shooting with just my 550D/T2i, the 40 pancake, and a 24mm in my pocket. Can't get anything much lighter and easier to carry around than that, and provide such great IQ. I hate to say it, but if anything, to my eyes, the 40mm maybe has better IQ than my 24mm which cost 4 times the price:o Or seems a bit more consistent anyway.
You sure brought out the best in the pancake lens with those shots you took.




















