Sport Optics

DS Fieldscope Eyepieces for Digiscoping

  1. Key Features
  2. Specifications
16x/24x/30x Wide DS
With Fieldscope ED50/ED50 A With Fieldscope III/III A/EDIII/EDIII A With Fieldscope ED82/ED82 A
Magnification (x) 16 24 30
Angular field of view
(Real/degree)
4.5 3.0 2.4
Angular field of view* (Apparent/degree) 64.3 64.3 64.3
Field of view at 1,000m
(m) (approx.)
79 52 42
Exit pupil (mm) 3.1 2.5 7.5
Relative brightness 9.6 6.3 7.3
Eye relief (mm) 18.7 18.7 18.7
Weight (g) 170 170 170
 
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
27x/40x/50x Wide DS
With Fieldscope ED50/ED50 A With Fieldscope III/III A/EDIII/EDIII A With Fieldscope ED82/ED82 A
Magnification (x) 27 40 50
Angular field of view
(Real/degree)
2.7 1.8 1.4
Angular field of view* (Apparent/degree) 64.3 64.3 64.3
Field of view at 1,000m
(m) (approx.)
47 31 24
Exit pupil (mm) 1.9 1.5 1.6
Relative brightness 3.6 2.3 2.6
Eye relief (mm) 17.8 17.8 17.8
Weight (g) 180 180 180
 
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
40x/60x/75x Wide DS
With Fieldscope ED50/ED50 A With Fieldscope III/III A/EDIII/EDIII A With Fieldscope ED82/ED82 A
Magnification (x) 40 60 75
Angular field of view
(Real/degree)
1.8 1.2 1.0
Angular field of view* (Apparent/degree) 64.3 64.3 64.3
Field of view at 1,000m
(m) (approx.)
31 21 17
Exit pupil (mm) 1.3 1.0 1.1
Relative brightness 1.7 1.0 1.2
Eye relief (mm) 17 17 17
Weight (g) 190 190 190
 
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.
  • *Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.