Extra-Large 100mm Objective Lens: The PF-100ED’s objective lens features an extra-large effective aperture of 100mm to produce a super-bright image field for effortless subject spotting and high-precision focusing
Lightweight Magnesium-Alloy Body: The PF-100ED is made of heavy-duty magnesium alloy to reduce weight and protect inner mechanisms, while its protective rubber housing further enhances shock resistance and durability
Waterproof Construction: The PF-100ED incorporates a dust-shielding glass element in its eyepiece receptacle to assure JIS Class 6 waterproof construction, so it can be used in the rain with no worries
Nitrogen-Filled Body: The PF-100ED’s body is filled with nitrogen gas to prevent internal fogging caused by sudden temperature changes, providing a clear vision under any condition