Montana Michael
Senior Member
hi all, i am researching extension tubes for my camera and would like some input from all the great members on this site. i have considered just buying a macro lens but i like the idea that tubes will convert any lens into a macro lens. not to mention the tubes are quite a bit cheaper than a lens alone. my questions are about the auto focus and exposure ability with the d 3100. i know i will need to buy tubes that have the contacts for the electronics for focus. any tips would be nice and any particular brands everyone likes. thanks