Canon EF 100mm f2.8L IS USM Macro battery cover mirror lenses have a few

mirror lenses have a few "downsides": they don't have an adjustable aperture

but not universal

the ProShade will save you a fortune on lenshoods and make you look like a real go-getter who doesn't have the time to switch lens hoods all day because you have places to go and things to do

Note when selecting from below: a higher diopter number means higher magnification

This Nishika N8000 is what kids these days call "New Old Stock"

Canon EF 100mm f2.8L IS USM Macro battery cover mirror lenses have a fewThe Canon EF 100mm f2. 8L IS Macro is a modern, pro quality macro lens with Canon's premium L series optics and build quality, plus an image stabilizer that works all the way to the closest focusing distance. Magnifies to life size (1: 1) without extension tubes. In excellent condition, with clean glass. Includes hood.