Ronny,
Thanks for taking care of the tutorials. Having everything under resources will make it much easier to locate these and any new ones you come up with.
Regarding the cell phone accessories, I had not been aware of any of these items. Very interesting. I’d like to see a critical review comparing image quality of these under $40 lenses with one taken with a $500 macro lens on a real camera though. Maybe that can be a part of your tutorial…
Jack