Tim, You didn't mention the brand. Are those Canon or Tamron? There seem to be no difference between the two though, except (maybe) for construction sturdiness.
Your 'L' quality remains. Just don't go too far stoping down, since the effect of diffraction increases. Regards, Gerard. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
