Bro my recommend is dun use extension tube. I am ex user of it and I found that the image you take will not sharp and there weight that if u are not use tripod and u tend to shake more. Macro cannot stand any shake once shake is gone your image will be blur. Rayno is better choice and 2nd hand is a cheap choice if u still not ready to go in macro or u can join a group macro at cs and lent from them. Hope this help you.