I notice this has appeared in the latest nikon cashback offer and i was considering picking it up for macro use, however a couple of reviews mention it's focal length is too short so you need to be very close to the subject. This also apparently gives issues with regards to you blocking your own light. I'd like to try it with insects for fun, but it's main use would be objects that don't move (rings and favours at weddings for example). I've got speed lights and light stands so off camera lighting isn't a problem. I just wondered if anyone was using this lens and what they thought?