10X triplet with 20.5 mm lenses provides sharp, clear images with greatly expanded viewing field. Color corrected, aplanatic and achromatic. Chrome with edges of lens and housing blackened to eliminate glare.
10X triplet with 20.5 mm lenses provides sharp, clear images with greatly expanded viewing field. Color corrected, aplanatic and achromatic. Chrome with edges of lens and housing blackened to eliminate glare.