Re: Leupold Variable Series Generations
Well, to get this started, I can contribute this, and I'll see what else I can find:
VX-II
• The VX-II line (2003 and older) uses a combination of Vari-X III and Vari-X II (discontinued) technology. VX-II’s also utilize ¼-MOA click adjustments, but the lens coatings are unique. The external lenses are coated with Multicoat 4 and the internal lenses are coated with magnesium fluoride.
• Beginning in 2004, the VX-II line is fully multicoated and will perform comparably to the discontinued Vari-X III line.
VX-I
• The VX-I also utilizes a combination of Vari-X III and Vari-X II technology, utilizing ¼-MOA friction (non-clicking) adjustments. The external lenses are multicoated and the internal lenses use magnesium fluoride.
Beginning in 2005, there were changes to the fixed magnification scope lines, updating them to follow the current convention used by the VX series of scopes; all fixed magnification scopes now have an “FX” designation followed by a number indicating the combination of technologies used in that product. For example, an FX-II will have the same lens coatings and adjustments as a VX-II, an FX-III will have the same lens coatings and adjustments as the VX-III line, etc.
There was also a shift from using the term “compact" to the term “ultralight,” meaning that the FX-II 2.5x20mm Ultralight which was introduced in 2005 will be a fixed magnification scope with ¼-MOA click adjustments, fully multicoated lenses, and will have the compact eyepiece.
Mark H.