Nikon Fieldscope Eyepieces

Nikon FEP-20W Eyepiece

Nikon Eyepiece Guide

All of the Nikon Fieldscopes and Spotting Scopes apart from the Spotter XL II have interchangeable eyepieces, which means that you can make the scope work best for your particular needs or indeed have a number of different eyepieces for different uses.

Each of Nikon's main ranges of scopes have their own eyepieces:


Nikon 50x FEP-50W Eyepiece>Nikon EDG Eyepieces

These are designed to be used with the Nikon EDG Fieldscopes, their top of the range fieldscopes and so as you would expect so are their eyepieces.

EDG Eyepieces FEP Series

There are seven eyepieces for optimum optical performance, all fully multilayer coated giving you the greatest flexibility possible. There are 5 wide angle eyepieces ranging from 20x to a massive 75x magnification, one with a 20-60x zoom eyepiece that offers superb optical performance with minimized distortion and long eye relief (18.4-16.5mm).

The eyepieces mount onto the body with a bayonet locking design that is really easy to attach and release as well as secure. As well as being both fogproof wand waterproof*, Nikon have a field flattener lens system that corrects overall aberration for a sharper, clearer edge-to-edge image.

*An important point to note is that while the eyepieces and the scopes themselves are filled with nitrogen gas and O-ring sealed making them waterproof and fog proof, the body-and eyepiece joint is only water-resistant.

Whilst these eyepieces are designed to fit the 85/85-A and the smaller 65/65-A, their magnifications, field of view exit pupil and relative brightness will depend on which scope you are using (see the specifications chart below)

Nikon EDG Eyepieces

  1. FEP-20W
  2. FEP-30W
  3. FEP-38W
  4. FEP-50W
  5. FEP-75W
  6. FEP-25 LER
  7. FEP-20-60

Top row: When attached to EDG Fieldscope 85/85-A
Bottom row: When attached to EDG Fieldscope 65/65-A

Model
name
FEP-20W FEP-30W FEP-38W FEP-50W FEP-75W FEP-25 LER FEP-20-60
Magnification
(x)
20
16
30
24
38
30
50
40
75
60
25
20
20-60
16-48
Real field
of view
(degree)
3.3
4.1
2.4
3.0
1.9
2.4
1.4
1.8
1.0
1.2
2.4
3.0
2.2-1.1
2.8-1.4
Apparent field
of view
(degree)
60 64.3 64.3 64.3 64.3 55.3 42-60
Field of view at 1,000m 58
72
42
52
33
42
24
31
17
21
42
52
38-19
49-24
Exit pupil (mm) 4.3
4.1
2.8
2.7
2.2 1.7
1.6
1.1 3.4
3.3
4.3-1.4
4.1-1.4
Relative brightness 18.5
16.8
7.8
7.3
4.8 2.9
2.6
1.2 11.6
10.9
18.5-2.0
16.8-2.0
Eye relief (mm) 20.1 25.4 17.9 17.8 17 32.3 18.4-16.5
Outer diameter x length (mm) 63x59 63x81*3 63x74 63x71 63x71 63x77 63x99
Weight (g) 240 390*3 230 230 230 320 330


The image below simulates the effect of each Nikon EDG eyepiece, the first magnification is when they are used on the EDG 85/85A Fieldscopes, whilst the second magnification is with the EDG 65/65A Fieldscopes.

Nikon EDG Eyepieces

Eyecups
Turn-and-slide eyecups are used that have three click stops: 1) for observing with the naked eye, 2) for observing with eyeglasses, 3) for digiscoping (except FEP-30W, FEP-25 LER and FEP-20-60)

Related Blog Posts

>> Download the Nikon EDG Fieldscope Specifications Leaflet


Buy & Compare Prices for Nikon EDG Eyepieces

Shop In the USANikon EDG Eyepieces on Amazon.com
Nikon Eyepieces on Eagle Optics

Shop In the UKNikon EDG Eyepieces at Warehouseexpress



Nikon 13-40x/20-60x/25-75x MC II zoom eyepiece>Nikon MC Fieldscope Eyepieces

The MC Fieldscope Eyepieces are designed to be used with Nikon's Fieldscope range, this includes the Nikon ED82/ED82 A Fieldscopes, Fieldscope III series, Fieldscope II series, ED50 series and ED78 series. Note: These eyepieces are not to be used for Fieldscope I series.

There are eight eyepieces giving you the greatest flexibility possible. The MC in their name stands for Multilayer Coating meaning that all lenses on these eyepieces are multilayer coated for maximum brightness of view field and all optics employ Eco-glass containing no arsenic or lead.

Within the MC Nikon Eyepiece series, there are 3 wide angle versions and 2 zoom eyepieces. All eyepieces can be used with any of the scopes listed above, however it is not recommended to use Nikon's ED50 Fieldscopes with the 20x/25x MC eyepiece or 24x/30x wide MC eyepieces.

Nikon MC Fieldscope Eyepieces

  1. 20x/25x MC eyepiece
  2. 27x/40x/50x MC eyepiece
  3. 24x/30x wide MC eyepiece
  4. 20x/30x/38x wide MC eyepiece
  5. 27x/40x/50x wide MC eyepiece
  6. 40x/60x/75x wide MC eyepiece
  7. 13-30x/20-45x/25-56x MC zoom eyepiece
  8. 13-40x/20-60x/25-75x MC II zoom eyepiece
Fieldscope Model Magnifi
-cation
(x)
Angular field
of view
(Real
/degree)
Angular field
of view
(Apparent
/degree)
Field of view at 1,000m (m)
(approx.)
Exit pupil (mm) Relative brightness Eye relief (mm) Weight (g)
20x/25x MC
With III
/III A
/EDIII
/EDIII A
20 3.0 55.3 52 3.0 9.0 15.2 75
With ED82
/ED82 A
25 2.4 55.3 42 3.3 10.9 15.2 75
27x/40x/50x MC
With ED50
/ED50 A
27 1.7 42.0 30 1.9 3.6 9.4 35
With III
/III A
/EDIII
/EDIII A
40 1.1 42.0 19 1.5 2.3 9.4 35
With ED82
/ED82 A
50 0.9 42.0 16 1.6 2.6 9.4 35
24x/30x wide MC*2
With III
/III A
/EDIII
/EDIII A
24 3.0 64.3 52 2.5 6.3 15.1 145
With ED82
/ED82 A
30 2.4 64.3 42 2.7 7.3 15.1 145
20x/30x/38x wide MC*1*2
With ED50
/ED50 A
20 3.6 64.3 63 2.5 6.3 17.9 160
With III
/III A
/EDIII
/EDIII A
30 2.4 64.3 42 2.0 4.0 17.9 160
With ED82
/ED82 A
38 1.9 64.3 33 2.2 4.8 17.9 160
27x/40x/50x wide MC*1*2
With ED50
/ED50 A
27 2.7 64.3 47 1.9 3.6 17.8 165
With III
/III A
/EDIII
/EDIII A
40 1.8 64.3 31 1.5 2.3 17.8 165
With ED82
/ED82 A
50 1.4 64.3 24 1.6 2.6 17.8 165
40x/60x/75x wide MC*1*2
With ED50
/ED50 A
40 1.8 64.3 31 1.3 1.7 17.0 175
With III
/III A
/EDIII
/EDIII A
60 1.2 64.3 21 1.0 1.0 17.0 175
With ED82
/ED82 A
75 1.0 64.3 17 1.1 1.2 17.0 175
13-30x/20-45x/25-56x MC zoom*1
With ED50
/ED50 A
13-30 3.0 (at 13x) 38.5 (at 13x) 52 (at 13x) 3.8 (at 13x) 14.4 (at 13x) 12.9 (at 13x) 100
With III
/III A
/EDIII
/EDIII A
20-45 2.0 (at 20x) 38.5 (at 20x) 35 (at 20x) 3.0 (at 20x) 9.0 (at 20x) 12.9 (at 20x) 100
With ED82
/ED82 A
25-56 1.6 (at 25x) 38.5 (at 25x) 28 (at 25x) 3.3 (at 25x) 10.9 (at 25x) 12.9 (at 25x) 100
13-40x/20-60x/25-75x MC II zoom*1*2
With ED50
/ED50 A
13-40 3.0 (at 13x) 38.5 (at 13x) 52 (at 13x) 3.8 (at 13x) 14.4 (at 13x) 14.1 (at 13x) 150
With III
/III A
/EDIII
/EDIII A
20-60 2.0 (at 20x) 38.5 (at 20x) 35 (at 20x) 3.0 (at 20x) 9.0 (at 20x) 14.1 (at 20x) 150
With ED82
/ED82 A
25-75 1.6 (at 25x) 38.5 (at 25x) 28 (at 25x) 3.3 (at 25x) 10.9 (at 25x) 14.1 (at 25x) 150


Buy & Compare Prices for Nikon MC Eyepieces

Shop In the USANikon Eyepieces on Amazon.com
Nikon Eyepieces on Eagle Optics

Shop In the UKNikon MC Eyepieces at Warehouseexpress



Nikon 16-48x/20-60x Zoom Eyepiece for RAIII WP>Nikon Spotting Scope Eyepieces

These four Nikon Eyepieces are for use with their RAIII 82 WP/82 A WP Spotting Scopes and the RAIII 65 WP/65 A WP Spotting Scopes. They feature a bayonet-type eyepiece mount with locking system for quick and secure connection and a turn-and-slide eyecups.

  1. 16-48x/20-60x Zoom eyepiece
  2. 20x/25x LER eyepiece
  3. 20x/25x eyepiece
  4. 30x/38x Wide eyepiece

Nikon Spotting Scope Eyepieces


16-48x/20-60x Zoom
20x/25x LER
20x/25x
30x/38x Wide
spacer

With RAIII 65/65 A WP
With RAIII 82/82 A WP
With RAIII 65/65 A WP
With RAIII 82/82 A WP
With RAIII 65/65 A WP
With RAIII 82/82 A WP
With RAIII 65/65 A WP
With RAIII 82/82 A WP
spacer
Magnifi
-cation
(x)

16-48
20-60
20
25
20
25
30
38
spacer
Angular
field of
view (Real
/degree)

2.4 (at 16x)
1.9 (at 20x)
2.0
1.6
2.5
2.0
2.2
1.8
spacer
Angular
field of
view
(Apparent
/degree)

37.1 (at 16x)
37.1 (at 20x)
38.5
47.2
59.9
spacer
Field of
view
at 1,000m (m)
(approx.)

42 (at 16x)
33 (at 20x)
35
28
44
35
38
31
spacer
Exit pupil
(mm)

4.1 (at 16x)
4.1 (at 20x)
3.3
2.2
spacer
Relative
brightness

16.8 (at 16x)
16.8 (at 20x)
10.9
4.8
spacer
Eye relief
(mm)

15.2 (at 16x)
15.2 (at 20x)
31.8
18.0
19.3
spacer
Weight
(g)

185
170
130
180


Buy & Compare Prices for Nikon Spotting Scope Eyepieces

Shop In the USANikon Eyepieces on Amazon.com
Nikon Eyepieces on Eagle Optics

Shop In the UKNikon Spotting Scope Eyepieces at Warehouseexpress




>Where to Buy Nikon Fieldscopes:

 


>>Featured Nikon Scopes

Below are a few featured Nikon Binoculars: View >> All Nikon Scopes reviewed


Nikon EDG Fieldscope 85

Nikon EDG Fieldscope 85

Nikon's straight design spotting scope with large 85mm objective lens, extra-low dispersion (ED) glass and waterproof: Perfect Wildlife and Birding Scopes.

These Binoculars are On SaleDiscount Scopes: These Nikon EDG 85 Fieldscopes are discounted on Amazon.com, Binoculars.com and Eagle Optics in the USA.
>> Check Prices

Nikon EDG Fieldscope 85-A

Nikon EDG Fieldscope 85-A

Large 85mm objective lens, extra-low dispersion (ED) glass and waterproof: Perfect Wildlife and Birding Scopes.

These Binoculars are On SaleDiscount Scopes: These Nikon EDG Fieldscopes are discounted on Amazon.com, Binoculars.com and Eagle Optics in the USA.
>> Check Prices

View >> All Nikon Fieldscopes reviewed on The Best Spotting Scope Reviews website.

 


Nikon Spotting Scopes on Amazon:


USA FlagAmazon USA


British FlagAmazon UK

 


 
 
Sherwoods Banner