---
product_id: 587962288
title: "Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men"
brand: "astromania"
price: "¥34689"
currency: JPY
in_stock: false
reviews_count: 5
category: "Astromania"
url: https://www.desertcart.jp/products/587962288-astromania-8x42-bak4-high-power-prism-monoculars-waterproof-compact-handheld
store_origin: JP
region: Japan
---

# 394ft/1000yds ultra-wide field for fast targets Waterproof & fogproof for all-weather use 8x magnification for crisp distant views Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men

**Brand:** astromania
**Price:** ¥34689
**Availability:** ❌ Out of Stock

## Summary

> 🔍 See More, Miss Less: Elevate your outdoor game with Astromania clarity!

## Quick Answers

- **What is this?** Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men by astromania
- **How much does it cost?** ¥34689 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/587962288-astromania-8x42-bak4-high-power-prism-monoculars-waterproof-compact-handheld)

## Best For

- astromania enthusiasts

## Why This Product

- Trusted astromania brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready for Action:** Includes tripod mount, carrying case, and accessories—perfect for gifting and adventure-ready.
- • **All-Weather Warrior:** Waterproof, fogproof, dustproof, and shockproof—built to brave any environment.
- • **Compact & Grip-Ready:** Lightweight, pocket-friendly design with rubber armor for secure, one-handed use on the go.
- • **BAK4 Prism Brilliance:** Fully multi-coated lenses deliver bright, high-contrast, and color-accurate images even in low light.
- • **Crystal-Clear 8x Zoom:** Experience sharp, detailed views without chromatic aberration.

## Overview

The Astromania 8X42 BAK4 Monocular combines powerful 8x magnification with a large 42mm objective lens and ultra-wide 394ft/1000yds field of view. Its rugged, waterproof, fogproof, and shockproof design ensures reliable performance in all weather conditions. Featuring fully multi-coated BAK4 prism lenses, it delivers bright, high-contrast, and color-accurate images even in low light. Compact and lightweight with a rubberized grip and tripod mount, it’s ideal for bird watching, hiking, and travel. Comes complete with a carrying case, cleaning cloth, and hand strap—making it a perfect gift for outdoor enthusiasts.

## Description

Equipped with 8x magnification and a large 42mm objective lens, allowing you to magnify the details in the distance and obtain more high-definition pictures without chromatic aberration. The 394ft/1000YDS ultra-wide-angle field captures fast-moving targets, ideal for bird watching, hiking, horse racing, sporting events, and more. Waterproof, fogproof, dustproof, shockproof, non-slip. Compact and sturdy body make it withstand the heavy weather, the mirror is full of the high-purity nitrogen, waterproof and antifogging. You can use it in raining day and humid environment, and no need to worry about this item. Advanced Fully Multi-Coated monocular with BAK4 prism lens provide HD vision, brighter view and clear low light vision. The high light transmittance of the BAK4 provides clear, high-contrast and color-accurate images. Only 5.91" x 2.83" x 2.09" and weighs 0.77lbs, the mini design is one-handed and fits easily into your pocket or backpack. Rubber armor with stripes increases the friction, keeps it from slipping out from your hand. The monocular scope also comes with a black bag, easy to carry.There also has a tripod connector at the bottom of monocular offers steady viewing when connect a monocular tripod. Astromania monocular is packed with English instruction manual, 1680D bag, hand strap, cleaning cloth and lens cap, definitely the perfect gift for others. Astromania is responsible for the quality of all monoculars. We promise to reply to after-sales service consultation within 24 hours to solve your problem. Friendly customer service makes your purchase worry-free.

Review: Very sturdy construction.
Review: More than satisfactory for my purposes

## Features

- Premium Monocular: Equipped with 8x magnification and a large 42 mm objective lens; allowing you to magnify the details in the distance without chromatic aberration; the 394 ft/1000 YDS ultra-wide-angle field captures fast-moving targets
- Excellent Performance: Waterproof fogproof dustproof shockproof compact and sturdy body make it withstand the heavy weather; the mirror is full of the high-purity nitrogen; waterproof and antifogging; using it in raining day and humid environment
- BAK4 Prism Lens: Advanced fully multi-coated monocular with BAK4 prism lens provide HD vision; brighter view and clear low light vision; the high light transmittance of the BAK4 provides clear; high-contrast and color-accurate images
- Portable and Easy to Use: One-handed design fits easily into bag; rubber armor increases the friction; comes with black bag is easy to carry; there also has tripod connector at the bottom offers steady viewing when connectting monocular tripod
- One Ideal Gift: Astromania monocular is packed with English instruction manual 1680D bag hand strap cleaning cloth and lens cap; definitely the perfect gift for others; Astromania is responsible for the quality of all monoculars

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TFCFLWV |
| Best Sellers Rank | #642,691 in Electronics ( See Top 100 in Electronics ) #182 in Monoculars |
| Brand | Astromania |
| Brand Name | Astromania |
| Coating | Multi-Coated |
| Compatible Devices | Tripod |
| Customer Reviews | 4.8 out of 5 stars 17 Reviews |
| Exit Pupil Diameter | 5.2 Millimeters |
| Eye Piece Lens Description | Prism |
| Field Of View | 0.82 Degrees |
| Finderscope | Reflex |
| Focal Length Description | 8x |
| Focus Type | Manual Focus |
| Item Dimensions D x W x H | 7.2D x 15W x 5.3H Centimeters |
| Item Height | 2.09 Inches |
| Item Weight | 349 g |
| Manufacturer | Astromania |
| Mount | Tripod Mount |
| Objective Lens Diameter | 42 Millimeters |
| Power Source | Handheld |
| Product Dimensions | 7.2D x 15W x 5.3H Centimeters |
| Telescope Mount Description | Tripod Mount |
| Zoom Ratio | 8 multiplier x |

## Product Details

- **Brand:** Astromania
- **Eye Piece Lens Description:** Prism
- **Objective Lens Diameter:** 42 Millimeters
- **Telescope Mount Description:** Tripod Mount
- **Product Dimensions:** 7.2D x 15W x 5.3H Centimeters

## Images

![Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men - Image 1](https://m.media-amazon.com/images/I/71SoLw-y7pL.jpg)
![Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men - Image 2](https://m.media-amazon.com/images/I/71ZTzQYTUmL.jpg)
![Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men - Image 3](https://m.media-amazon.com/images/I/71kEqizXtOL.jpg)
![Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men - Image 4](https://m.media-amazon.com/images/I/81wB6yuiuhL.jpg)
![Astromania 8X42 BAK4 High Power Prism Monoculars, Waterproof, Compact Handheld Monoscope for Bird Watching, Traveling Gifts for Men - Image 5](https://m.media-amazon.com/images/I/91c7hIfq+yL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very sturdy construction.
*by A***R on 14 November 2025*



### ⭐⭐⭐⭐⭐ More than satisfactory for my purposes
*by G***Y on 16 November 2024*



### ⭐⭐⭐⭐ Good quality for the price
*by J***D on 5 August 2025*



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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*