
Leica
Leica 40391 Monovid 8x20 Monocular Red
★★★★★
Premium Leica 8x20 pocket monocular with waterproof construction and close-up lens for detailed macro observation.
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Overview
Key Features
Handy, versatile , and only 4 ounces.
Nitrogen filled for waterproofing and non-fogging.
Waterproof to 16 feet.
Specifications
Magnification
8x
Objective Lens Diameter
20 mm
Exit Pupil
2.5 mm
Twilight Factor
12.7
Eye Relief
15 mm
Objective Angle of View
6.3°
Close Focusing Distance
1.8 m (10–12 in with close-up lens)
Watertightness
To a depth of 5 m / 16.5 ft
Nitrogen Filled
Yes
Eyepiece
Suitable for eyeglass wearers
Weight
4 ounces
Color
Red
Included Accessories
Leather Case, Close-up Lens
Pros & Cons
👍 Pros
- Exceptional Leica optics deliver sharp, high-contrast 8x magnification in a pocket-sized body
- At only 4 ounces it is extremely lightweight and easy to carry all day
- Nitrogen-filled and waterproof to 16.5 feet so it handles rain and humidity without fogging
- Included close-up lens enables macro viewing from as near as 10 inches
- 15mm eye relief accommodates comfortable use with or without eyeglasses
👎 Cons
- Premium Leica pricing places it well above most consumer monoculars
- 8x20 configuration provides a relatively narrow 6.3-degree field of view
- Single 20mm objective lens limits light gathering in low-light conditions compared to larger optics
- Monocular design lacks the depth perception of binoculars for extended observation
Frequently Asked Questions
Can the Leica Monovid be used for close-up macro viewing?
Yes, it includes a close-up lens attachment that allows focusing as near as 10–12 inches, making it excellent for inspecting insects, flowers, and fine details.
Is the Monovid waterproof?
Yes, it is nitrogen-filled and waterproof to a depth of 16.5 feet (5 meters), which also prevents internal fogging in humid conditions.
Is this monocular suitable for eyeglass wearers?
Yes, the eyepiece is designed to accommodate eyeglass wearers, with 15mm of eye relief for comfortable viewing with or without glasses.
How much does the Leica Monovid weigh?
It weighs just 4 ounces, making it one of the lightest quality monoculars available for pocket carry.
Does it come with a carrying case?
Yes, a leather case is included for safe storage and transport.