Throwing Shade: XOONS, SOOPD, FISON, FIKUS & Other Made-Up Words

As a user of a modest pile of vintage thread mount Leica lenses, I've found that shooters often skimp on using shades with these little wonders.  Sadly, some of these lenses get a bad rep as a result of what is essentially, improper use. The driver is most certainly, cost.  Perhaps not surprisingly, vintage Leica...