MEP-30 FS-MRAD / MEP-30 FS-MOA
Printed in China 897C_1_1901
English
Thank you for purchasing the Nikon Fieldscope Eyepiece.
This product is an eyepiece that you can use by attaching to all Nikon’s MONARCH Fieldscopes. Also see the Instruction manual for
MONARCH Fieldscope for information on attaching and using the eyepiece. This manual only explains functions unique to this eyepiece.
Package contents
Eyepiece body · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ×1
Mount cap (attached to the eyepiece body) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ×1
Eyepiece cap (attached to the eyepiece body) · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ×1
Case · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ×1
Nomenclature
1
Eyecup
2
Eyepiece adjustment
3
Eyepiece lens attachment index
4
Eyepiece mount*
* The eyepiece uses the “Type 1 Bayonet Mount”.
3
2
1
4
Adjusting the eyecup
When observing with the naked eye: Use fully extended by rotating the eyecup counter-clockwise.
When observing with glasses: Use fully retracted by rotating the eyecup clockwise.
Focusing
1
Look through the eyepiece to see the reticle (Fig. 1).
2
Point the objective end of the fieldscope at the sky (do NOT
point it at the sun) or at a plain unpatterned wall.
3
Turn the eyepiece adjustment counter-clockwise and then turn
it clockwise until the reticle appears sharp.
Notice:
Reticle images shown in this manual are representations
only. Actual images may vary.
FS-MRAD reticle
FS-MOA reticle
Fig. 1
Using the MONARCH MEP-30/ integrated FS-MRAD or FS-MOA
reticle
The MONARCH 30× MEP eyepiece with FS-MRAD or FS-MOA reticle can be fitted to straight or angled body 82mm or 60mm MONARCH
Fieldscopes. The 30× magnification in 82mm Fieldscope bodies and 24× magnification in 60mm Fieldscope bodies provide fast target
acquisition as well as excellent image resolution, color and contrast.
When used alongside any riflescope with corresponding MRAD or MOA hashmark reticle and turrets, this eyepiece becomes a useful tool
for shot corrections, range estimation, target speed estimation, and especially for shooter/spotter team communications. The reticle can
also be used to measure animals/horns/antlers and other subjects at known distances.
In the FS-MRAD reticle, both the main targeting reticle and the highly detailed milling scale in the lower right quadrant of the viewing
field are calibrated in MRADs (or fractions thereof) for quick referencing and easy measurement calculations. The separate milling scale
provides measurement detail down to 0.1 MRAD without cluttering the main targeting reticle. In the FS-MOA reticle, both the main
targeting reticle and the milling scale are calibrated in MOA, with the milling scale providing measurement detail down to 0.5 MOA.
Using MONARCH MEP-30 Fieldscope Eyepiece with FS-MRAD or
FS-MOA as a tool for spotter/shooter communication
Fitting a MONARCH Fieldscope with this eyepiece and integral MRAD or MOA reticle allows a spotter to rapidly locate and focus on the
same specific target his counterpart, the shooter, sees through a riflescope with corresponding MRAD or MOA reticle. The increased
magnification of the Fieldscope enables the spotter to get a highly detailed view of the target. Because the riflescope and Fieldscope have
similar precision targeting reticles, the spotter and shooter can communicate exact distance information and reference points to each
other and the shooter can make needed corrections without taking eyes off the target. The spotter also has the finely calibrated milling
scale within the Fieldscope eyepiece to enable highly detailed measurements for extremely accurate shot correction instruction.
Reticle subtension chart for FS-MRAD
R
Q
P
O
N
M
L
K
J
I
H
G
F
F
E
D
C
B
A
Letters A to R in the diagram above refer to the reticle subtensions
of units A to R shown on the table to the right.
Model
MEP-30
Reticle
FS-MRAD
MONARCH Fieldscope
Objective Diameter
82mm (30×)
60mm (24×)
Reticle subt
ensions
Unit
MRAD
A
0.01
0.02
B
0.20
0.25
C
0.30
0.38
D
0.60
0.75
E
0.20
0.25
F
0.05
0.06
G
1.00
1.25
H
0.10
0.13
I
0.05
0.06
J
0.15
0.19
K
0.30
0.38
L
0.01
0.02
M
2.00
2.50
N
4.00
5.00
O
6.00
7.50
P
8.00
10.00
Q
10.00
12.50
R
8.00
10.00
Reticle subtension chart for FS-MOA
N
M
L
K
J
I
H
G
F
E
D
C
B
A
O
Letters A to O in the diagram above refer to the reticle subtensions
of units A to O shown on the table to the right.
Model
MEP-30
Reticle
FS-MOA
MONARCH Fieldscope
Objective Diameter
82mm (30×)
60mm (24×)
Reticle subt
ensions
Unit
MOA
A
0.05
0.06
B
0.75
0.94
C
1.50
1.88
D
2.50
3.13
E
1.00
1.25
F
3.00
3.75
G
0.50
0.63
H
0.20
0.25
I
0.75
0.94
J
1.25
1.56
K
0.05
0.06
L
10.00
12.50
M
20.00
25.00
N
30.00
37.50
O
30.00
37.50
Product specifications
Model
MEP-30
MONARCH Fieldscope objective diameter
(mm)
82
60
Actual magnification
(×)
30
24
Angular field of view (real)
(°)
2.0
2.5
Angular field of view (apparent)
*1
(°)
55.3
55.3
Field of view at 1,000 m
(m)
35
44
Field of view at 1,000 yd.
(ft)
105
131
Exit pupil
(mm)
2.7
2.5
Relative brightness
7.3
6.3
Eye relief
(mm)
15.2
15.2
Length
*2
(mm)/(in.)
89/3.5
Outer diameter
*2
(mm)/(in.)
62/2.4
Weight
*2
(g)/(oz)
470/16.6
Waterproof performance
Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5 mm (0.2 in)
per minute for a duration of 30 minutes)
*3
*1 Calculated based on the ISO14132-1:2002 standard
*2 Without the caps
*3 This product will suffer no damage to the optical system in precipitating water equivalent to 5 mm (0.2 in) of rainfall per minute for a duration of 30
minutes (in normal use with the eyepiece attached to the fieldscope correctly). NOT designed for underwater usage.
Note: Because values shown on these charts were designed values rounded up/down, calculation of figures may not match exactly.
• Specifications and design are subject to change without notice.
• Reproduction of this “Instruction manual” in any form, in whole or in part (except for brief quotation in critical articles or reviews),
may not be made without written authorization from NIKON VISION CO., LTD.
If this product requires repair, please contact your local dealer for details regarding where to send it.
FIELDSCOPE EYEPIECE / OCULAIRE DE LUNETTE
Instruction manual / Mode d’emploi
En Fr
