> The 4.3" (10.9cm) quoted* for working distance for the older EF 100 f2.8 macro > non-USM agrees closely with the 11cm (lens front to subject) I measured when I > had mine.
FWIW, The old lens I still have (love the recessed front element) M Clearance (tip of lens to subject) 1:1 11.2 cm 1:1.5 16.2 cm 1:2 21.2 cm 1:2.5 26.4 cm 1:3 31.0 cm 1:4 40.3 cm * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
