Macro-ology...

Ok, so that is not really a word, but I really want to dabble in macro photography. I currently have a 50mm 1.8, but really debating trading it for a 50mm 2.5. I took this photo by turning my lens around backwards. Not the best, but I guess it could work, but I really need to look into the real thing. Anyone that has experience with a macro lens, what do you think?