UV (Ultraviolet)

All the exclusivity/rarity arguments in Why Multi Spectrum Photography Is So Rare apply with gusto to UV photography.  Shooting UV requires:

1. modified camera -- no way to wing it, unlike IR
2. either resigning to absolutely abysmal image quality or buying exotic lenses, costing $6K+ each, manual-focus only, and pretty much limited to 60mm-105mm range (in other words -- forget about wide and telephoto):
   a. Coastal Optics UV-VIS-IR 60mm Apo Macro
   b. Pentax 85mm F/4.5 Ultra Achromatic Takumar Asahi (only available used)
   c. Nikon 105mm F4.5 UV Lens (it's sold brand new from Company 7 for less money than it sells used on Ebay.)
   d. Coastal Optics UV-VIS 105mm CoastalOpt® SLR Lens (reviews indicate Nikkor is superior, especially in IR)
   e. Some exotic Zeiss medium format lens, selling for $25K+ on Ebay these days
   The only good news with these lenses is that you are likely to pay more for them when you sell them, after finally giving up on UV photography.
3. $400 Baader UV filter.  Cheaper filters will allow VIS and/or IR to leak in, or, alternatively, rob you of the already-very-limited UV flux (read -- steal a stop or two).
4. To Be Continued...