This eyepiece works with the Nikon Field Scope III and Scope ED50 or ED82 (Straight or angled)

The Nikon MC 20-45x Zoom Eyepiece for 60mm Fieldscopes and 25-57x Zoom when used with 78mm or 82mm Fieldscopes & 13-30x when used with 50mm Fieldscopes like the Fieldscope EDA 50.

Features:

• MC (Multilayer Coating) for maximum brightness of view field
• Turn-slide rubber eyecup is applied to the wide type eyepiece for comfortable viewing. It helps you position your eyes at the correct eyepoint
• Optics employ Eco-glass containing no arsenic or lead.

  Specifications:

  Magnification:

• 20-45x with Fieldscope III / ED III / III A / EDIII A
• 25-56x with Fieldscope ED82 / ED82 A

  Angular field of view (Real / degree):

• 2.0 Degree at 20x with Fieldscope III / ED III / III A / EDIII A
• 1.6 Degree at 25x with Fieldscope ED82 / ED82 A

  Angular field of view (Apparent / degree):

• 40 Degree at 20x with Fieldscope III / ED III / III A / EDIII A
• 40 Degree at 25x with Fieldscope ED82 / ED82 A

  Field of view at 1,000m (m):

• 35M at 20x with Fieldscope III / ED III / III A / EDIII A
• 28M at 25x with Fieldscope ED82 / ED82 A

  Exit pupil (mm):

• 3.0mm at 20x with Fieldscope III / ED III / III A / EDIII A
• 3.3mm Degree at 25x with Fieldscope ED82 / ED82 A

  Relative brightness:

• 9.0 at 20x with Fieldscope III / ED III / III A / EDIII A
• 3.3 at 25x with Fieldscope ED82 / ED82 A

  Eye relief (mm):

• 12.9mm

  Length (mm):

• 76mm

  Width (mm):

• 39mm

  Weight (g):

• 100 g