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    Opticron Adventurer T WP 8x42

    I have the larger Adventurer Porro binocular and rate it less good than a Nikon Action or Aculon. Part of the truncated exit pupil may be due to the collimation procedure. Many binoculars have much more exit pupil cut off. The 12x Optolyth Porros are extreme versions. Old extra wide angle...