WHAT IS MACRO
Thanks to Arthur Fitt for finding this PSSA Salons definition of MACRO
“Macro photography is extreme close-up photography, where you get close to a small subject by physical or optical means. Starting at approximately 1/4 life size i.e. when the subject being photographed is four (4) times the size of the film frame or digital sensor. There is no limit on the upper end. The size of the subject in the finished photograph is greater than life size”.
Comment by Arthur – “The last sentence doesn’t help, but basically it does enable one to use a lens which is not strictly macro, that is one that can achieve a 1:1 reproduction ratio, and take photos that PSSA will accept in a salon at a 1:4 ratio.