I don't have a definitive answer I'm afraid, but the pictures that I posted were 640 x 480 (96Kb). They look great on the screen. Of course, if these pictures were selected for the calendar I could email better quality ones.
The rain has finally stopped in Dorset so I thought I would give the Beast a quick polish. The Mrs has a new camera and was looking for subject matter to practise on, so here are the results.