H haddock Messages 49 Edit My Images No 30 Nov 2011 #1 hello,i have just got a 1d3.if i use a 100/300 sigma f 4 and a 2x converter am i right in thinking that i can still use af. many thanks.haddock.
hello,i have just got a 1d3.if i use a 100/300 sigma f 4 and a 2x converter am i right in thinking that i can still use af. many thanks.haddock.
scottthehat Messages 6,290 Name scott Edit My Images Yes 30 Nov 2011 #2 you sure can. it will be a 200-600mm f8.
