a newbie here having trouble with the above. I was not allowed to try the filters at the store (2nd fl peninsular) so bopian....buy first then went back to try and it did not work on my Sigma 70-300 f4/5.6 APO Macro Super II. It just was not able to focus.
Should I put the close up filter on the lens and then followed by UV guard or UV guard first followed by close up filter and then the lens. Tried both ways but still could not focused.
Assistance/tips will be appreciated!