Leica
Leica 40390 Monovid 8x20 Monocular Black Leather
★★★★★
Compact and Powerful Optics for On-the-Go ObservationThe Leica Monovid 8 x 20 Monocular is a compact and high-quality optic designed for convenient observation in various settings. Its small size and robust construction make it the perfect companion for travel, outdoor activities, and everyday us...
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Overview
Compact and Powerful Optics for On-the-Go Observation
The Leica Monovid 8 x 20 Monocular is a compact and high-quality optic designed for convenient observation in various settings. Its small size and robust construction make it the perfect companion for travel, outdoor activities, and everyday use.
- Magnification: 8 x
- 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
- Close Focusing Distance with Close Focus Lens: 25 – 30 cm
- Eyepiece for Eyeglass Wearers: Yes
- Watertightness: To a depth of 5 m/16.5 ft
- Special Features: Close-up accessory lens, Nitrogen filling prevents misting, AquaDura lens coating
Key Features
close-up accessory lens. Close focusing distance-approx. 1.8 m. Close focusing distance with close focus lens- 9.8–11.8 inches
nitrogen filling prevents misting
water and dirt repellent AquaDura lens coating
Roof prism with phase correction coating P40
Internal focusing via central focusing knob
Specifications
Magnification
8x
Objective Lens Diameter
20mm
Close Focusing Distance
Approx. 1.8 m
Close Focusing Distance (with accessory lens)
9.8–11.8 inches
Prism Type
Roof prism
Lens Coating
AquaDura (water and dirt repellent), Phase correction coating P40
Internal Features
Nitrogen filling, Internal focusing via central focusing knob
Pros & Cons
👍 Pros
- Equipped with a close-up accessory lens, allowing for detailed observation of nearby subjects.
- Offers a very close focusing distance with the close-up lens, ranging from 9.8 to 11.8 inches for intricate viewing.
- Features nitrogen filling, which effectively prevents internal misting and ensures clear vision in various conditions.
- Includes an AquaDura lens coating, providing water and dirt repellency for improved clarity and maintenance.
- Utilizes a roof prism with phase correction coating P40, designed to enhance image contrast and resolution.
👎 Cons
- The close focusing distance without the accessory lens is approximately 1.8 meters, which may be limiting for certain close observations.
- Specific details on the monocular's field of view or eye relief are not provided, which could be a factor for some users.
- While the lens coatings are beneficial, there is no mention of impact resistance for the external casing.
- The compact 8x20 magnification, while portable, may not offer sufficient reach for distant subjects compared to larger optics.
- Information regarding battery requirements for any potential illumination or electronic features is not available.
Frequently Asked Questions
What is the primary benefit of the close-up accessory lens on this monocular?
The close-up accessory lens allows for incredibly detailed observation of very near subjects, with a close focusing distance of 9.8–11.8 inches.
How does the nitrogen filling improve the performance of this monocular?
The nitrogen filling prevents internal misting, ensuring clear vision even in environments with significant temperature changes or high humidity.
Is the Leica 40390 Monovid suitable for use in wet or dirty conditions?
Yes, the AquaDura lens coating provides water and dirt repellency, making the monocular more robust for use in various outdoor conditions.
What kind of focusing system does this monocular use?
This monocular features internal focusing, which is managed via a central focusing knob for precise adjustments.
Does the phase correction coating P40 offer a significant advantage?
The phase correction coating P40 on the roof prism is designed to enhance image contrast and resolution, contributing to a clearer and sharper viewing experience.
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