PVS 14 Objective Lens

grabcad

---UPDATED--- PVS 14 Objective Lens manufactured by Carson Industries. Externally close to perfect, threads as well. Turns out they are a 16G imperial thread with a special pitch. The internal objective threads (not modeled) appear to be a 30G imperial thread, same goes for the rear thread. Lenses have been modeled as closely as humanly possible, most focal lengths have been figured out. If anyone has the time on their hands, they can try to figure out the focal lengths for the concave lenses. No idea what kind of coating they use, if anyone knows, the info would be much appreciated. The Fifth lens in its current position facing the way it is, has a focal length of 8mm. Flipped around, it's about 15mm, maybe 16. Internally close to perfect but something appears to be a little bit too long as the Sixth lens is sticking out just barely more than mine IRL.--EDIT-- The 3rd front lens and the metal 3rd lens spacer need to be reversed as that is the correct order. Otherwise, the configuration will result in almost infinity focus at all distances, also DRASTICALLY increasing the actual image resolution, clarity, and quality! I HIGHLY recommend trying this out yourself if you have a low spec tube or aren't satisfied with the image quality of the current setup. The 3rd lens will have room to wiggle back and forth, causing the monocular to go out of focus if you look up. Looking back down shifts the 3rd lens to the forward position, setting everything back into focus. Important and useful info depending on how you want to run your PVS14. In case you want to run it with the reversed order, print yourself a spacer to keep the 3rd lens in place to prevent it from shifting occasionally.