I have e-pl5 with the 14-42mm and 40-150mm kit lenses. I also own the Panny 20mm 1.7. I also maintain a reef tank and I want to take some Macro shots of the corals I keep. For example, like this: I need to take pictures in the 4" - 18" distance through the glass of the aquarium. These corals are 1/2" to a few inches. Of course I also like to take pictures of other small things like flowers and insects etc ... But primarily I would like to take good macro shot of corals. Manual focusing is ok but of course auto is a bonus. I have been doing some research including using the "Macro" setting of the E-PL5. Honestly I am very confused and not sure what to get. Looks like choices are: 1. Extension tubes. These are very cheap but I am not sure whether it will satisfy my own specific need. 2. Oly MCON-P01 (or P02). I do like the slick look. 3. Raynox macro conversion lens. I guess these are similar to the Oly conversion lens. 4. Legacy macro lens with extension adapter to 1:1 + mount adapter. What is the best option? Any other suggestions?