Fieldscope Eyepieces MEP series for MONARCH

Key Features

MEP eyepieces are exclusively designed for MONARCH Fieldscopes and are ideal for both observation and digiscoping.

Fieldscope Eyepieces MEP series

MEP-38W

MEP-20-60

MEP-30-60W

Fieldscope Eyepiece MEP Series Common Key Features

  • Three eyepieces exclusively designed for MONARCH Fieldscopes. All eyepieces feature a Type 1 Bayonet Mount with lock for easy attachment and detachment.
  • Field Flattener Lens System provides consistent sharpness across the entire field of view, all the way to the periphery
  • Multilayer coating is applied to all lens surfaces for natural and bright images
  • Long eye relief design ensures a clear field of view, even for eyeglass wearers
  • Turn-and-slide rubber eyecups facilitate easy positioning of the eyes at the correct eyepoint
  • Waterproof structure* sealed with O-ring when attached to a MONARCH Fieldscope body (Eyepiece is not waterproof)
    • *Equivalent to rainfall of 5mm per minute for a duration of 30 minutes. (NOT designed for underwater usage)
  • Compact digital camera COOLPIX series and Advanced Camera Nikon 1 series can be attached using optional digiscoping accessories (Some models are not compatible)

MEP-38W Key Features
38x (When attached to MONARCH Fieldscope 82 series)
30x (When attached to MONARCH Fieldscope 60 series)

  • Optimum image quality and outstandingly wide field of view
  • Outstandingly wide 66.4° apparent field of view
  • Effectively corrects curvature of field and astigmatism, realising uniformly high resolution all the way to the periphery

MEP-20-60 Key Features
20-60x (When attached to MONARCH Fieldscope 82 series)
16-48x (When attached to MONARCH Fieldscope 60 series)

  • A versatile 3x zoom eyepiece for a wide range of applications
  • Clear and highly uniform sharp image with effectively corrected chromatic aberration, all the way to the periphery throughout the entire zoom range

MEP-30-60W Key Features
30-60x (When attached to MONARCH Fieldscope 82 series)
24-48x (When attached to MONARCH Fieldscope 60 series)

  • Superior optical performance eyepiece over the entire 2x zoom range
  • Advanced optical design provides a wide field of view while optimally correcting image distortions over the entire zoom range
  • Ultra-high optical resolving power as well as a sharp and clear view, throughout the entire zoom range

Specifications

Swipe horizontally to view full table.

MEP-38W
with MONARCH 82 series with MONARCH 60 series
Magnification (x) 38 30
Angular field of view (Real/degree) 2.0 2.5
Angular field of view (Apparent/degree)*1 66.4 66.4
Field of view at 1,000 m/yd. (m) 35 44
Exit pupil (mm) 2.2 2.0
Relative brightness 4.8 4.0
Eye relief (mm) 18.5 18.5
Length (mm) *2 73 73
Outer diameter (mm)*2 61 61
Weight (g)*2 270 270
Waterproof performance Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6		 Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6

Swipe horizontally to view full table.

MEP-20-60
with MONARCH 82 series with MONARCH 60 series
Magnification (x) 20-60 16-48
Angular field of view (Real/degree) 2.1-1.0*3 2.6-1.2*3
Angular field of view (Apparent/degree)*1 40.4-54.3*3 40.4-54.3*3
Field of view at 1,000 m/yd. (m) 37-17*3 45-21*3
Exit pupil (mm) 4.1-1.4*3 3.8-1.3*3
Relative brightness 16.8-2.0*3 14.4-1.7*3
Eye relief (mm) 16.1-15.3*3 16.1-15.3*3
Length (mm) *2 89 89
Outer diameter (mm)*2 62 62
Weight (g)*2 350 350
Waterproof performance Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6		 Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6

Swipe horizontally to view full table.

MEP-30-60W
with MONARCH 82 series with MONARCH 60 series
Magnification (x) 30-60 24-48
Angular field of view (Real/degree) 2.0-1.2*3 2.5-1.5*3
Angular field of view (Apparent/degree)*1 55.3 - 65.6*3 55.3 - 65.6*3
Field of view at 1,000 m/yd. (m) 35-21*3 44-26*3
Exit pupil (mm) 2.7-1.4*3 2.5-1.3*3
Relative brightness 7.3-2.0*3 6.3-1.6*3
Eye relief (mm) 15.2-14.2*3 15.2-14.2*3
Length (mm) *2 91 (with DS) *4
92 (with TS) *5		 91 (with DS) *4
92 (with TS) *5
Outer diameter (mm)*2 62 62
Weight (g)*2 370 (with DS)*4
400 (with TS)*5		 370 (with DS)*4
400 (with TS)*5
Waterproof performance Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6		 Eyepiece: Not waterproof
With Fieldscope attached: Waterproof (water equivalent to 5mm per minute for a duration of 30 minutes)*6
  • *1Calculated based on the ISO14132-1:2002 standard. For details, click here.
  • *2Without caps.
  • *3Designed reference value at highest magnification.
  • *4When the DS (digiscoping) ring attachment is attached.
  • *5When the TS (turn slide) ring attachment is attached.
  • *6This product will suffer no damage to the optical system in falling water equivalent to 5mm rainfall per minute for a duration of 30 minutes. 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.
Related Links

Fieldscopes