Kowa TSN-88A PROMINAR 88mm Angled Spotting Scope BodyThe Kowa TSN 88A PROMINAR 88mm Angled Spotting Scope Body uses most of the same technology of the TSN 99A scope. A full magnesium alloy body replaces the hybrid magnesium aluminum bodies of the 880s. No longer is the filter thread at the distal end of the lens hood: it now resides right in front of the objective lens so filters are shaded from direct light when the lens hood is extended, improving glare reduction. An additional screw hole in the