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Pentax Marine Boat 8 x 40 PCF WP II Series Marine Boat Binoculars
Nitrogen-filled waterproof JIS Class 6 construction
Aluminum-diecast body adds strength and durability
Long eye-relief for viewing with or without glasses
Mechanical focus lock feature allows user to lock in at a specific distance for convenient focus-free viewing
Click-stop diopter adjustment locks in right eyepiece diopter setting :