We said it before, macro tubes are nothing more that air wrapped in plastic. This is why we were happy to see another adaptation on the Pringles can that makes macro easy on the budget by Sameer Garde
On closer inspection, though, I understood that is was not a Pringles can, but a baking powder can. That definitely takes points off for edibility. Jump for more macro.
Sameer’s reverse lens mount, is also made from a non Pringles tube. So again, only points for innovation, and not for edibility.
And here is what you get with cardboard and air