Magnifying glasses I don't need yet. Though I'm 56 years old and DO wear bifocals for ordinary vision, I still have perfect close-up vision when I take my glasses off. Which is how I paint normally since a lot of my painting work is extremely detailed and photorealistic (when I want/need it to be) although I frequently have to put my glasses back on and step back to "see the big picture" as I'm working. But....for really extreme magnification I have a couple of little lenses I use when I need to view seedlings VERY closely--I've had these for so long, since my growing cacti from seed days in the early 1990's, that I don't remember where they came from.....other than one was part of some sort of old instrument that was used in silk screen printing for checking or counting the threads per inch of the silk material itself--what a headache THAT job would be!
Mike in MN
Almost forgot--here's a photo of the dwarf arabicum with three cots and three leaves--just today the leaves have gotten big enough to see without my magnifier lens and could be photographed. By the way.....is anybody else using these coir fiber pots? I love them because they seem to allow a LOT of oxygen through the porous sides to get to the roots.