Alpha Optics Monoculars

Alpha Optics manufactures its own tubes which are comparable with high-specs in America market. The American FOM grading for the tubes is not normally used by tube manufacturers outside the USA. Since we offer non-American tubes only to our commercial customers, we also don’t use it.

So, the categories 2 and 3 are usually commercial grades with resolutions 57+ lp/mm and 51 lp/mm. Categories 0 and 1 are Milspec with resolutions 70+ and 64+.