![]() ![]() View QuoteAgain, the answer is that it's just not that simple because there are different types. I understand that you're asking right now because you already have a set of ANVIS lenses, but again, the easiest solution for most folks, especially those who are not super aware of even the potential differences, is to go with the PVS-14 lens, and if you were upgrading, unless you had a specific need for ANVIS lenses, I would recommend that your next move be to a PVS-14 format lens, rather than trying to keep switching your ANVIS lenses over. Not trying to get into the whole "statist" thing that's being thrown around the LIF thread, it is what it is-ultimately, for most ground-based users, it's just cheaper, easier, and less complicated to go with the common and standard PVS-14 format lenses. The long and the short of it is that with ANVIS systems being in service since about 1989, and used in so many applications, military, civilian, LE, fixed wing, rotary wing, ground, etc., it can sometimes be hard to know what you have, and again, at least some of the technical details are things that can't be discussed in too much detail, so you're almost kind of rolling the dice if you're talking about getting/using a used set/second-hand/surplus lenses. Meanwhile, PVS-23 (F5050) lenses are usually "ground spec,” but you need to be sure that you're getting the correct lenses from a reputable source. ![]() ![]() I personally really like AVS-6 format translating lenses (meaning that you can rotate the focus ring without rotating the whole objective), but they're not always the right choice for every application. There are a lot of different "types" of ANVIS lenses depending on/based on the application, and not all of those technical details can necessarily be discussed openly, but some of them filter out different types of light, often for use inside aircraft cabins, etc., so a "minus blue" will filter out all blue light, including say, blue chem lights. ![]()
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