This was taken
with a 20mm lens at my old work (don't you love my office?)  The colored
bit around the lightswitch is what was covered by the 300mm lens. Yes,
that's a wookie.
 Both these 
pictures were scanned at the same resolution, and both are the full 
frame.  I put the "Escape from L.A." postcard on the lightswitch to 
see if anyone would notice, and it sat there for 5 months before anyone
said anything.