Bausch & Lomb Folding Triplet 7x Magnifier

The 7 x magnification model has the largest field of view and depth of field of any of the Hastings lenses and is a remarkably fun lens to look through.. The diameter of the lens is 19.8mm. the focal length is 1.5″ inches (3.9cm).

The sides of the lenses are coated black to reduce glare when using. the swing away nickel plated case protects the lens and also serves as a handle. includes a padded bag for transport though most people attach these to a lanyard. Assembled in the US with US and imported parts.