Already the specification on the nameplate is wrong. The enlargment is 16x and and the lens aperture is not 52 mm but 40 mm. When focusing one notices that the optical axis is not accurately calibrated. Spectrum of boundary lines show that the achrom
Dür perfect price an ordinary part, a carrying bag with Velcro allows eyepiece comfortably on a belt to wear it and is thus suitable for the Airsoft sport
