---
product_id: 65017307
title: "COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black"
brand: "costin"
price: "45 zł"
currency: PLN
in_stock: false
reviews_count: 2
url: https://www.desertcart.pl/products/65017307-costin-10x42-monocular-telescope-central-focusing-with-built-in-rangefinder
store_origin: PL
region: Poland
---

# 10x magnification for crystal-clear distant views Built-in directional compass for precise navigation Fogproof & multi-coated BAK4 prism for ultra-clear optics COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black

**Brand:** costin
**Price:** 45 zł
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Elevate your vision, own every moment.

## Quick Answers

- **What is this?** COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black by costin
- **How much does it cost?** 45 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/65017307-costin-10x42-monocular-telescope-central-focusing-with-built-in-rangefinder)

## Best For

- costin enthusiasts

## Why This Product

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

## Key Features

- • **Navigate Like a Pro:** Integrated directional compass and rangefinder scale keep you on target, whether on the golf course or in the wild.
- • **Complete Adventure Kit:** Includes carrying case, hand strap, paracord bracelet, and cleaning cloth—everything you need to elevate your outdoor experience.
- • **Pocket-Ready Portability:** Compact, lightweight design fits easily in your pocket or bag—perfect for spontaneous adventures and on-the-go professionals.
- • **One-Handed Precision Focus:** Effortlessly adjust focus with a smooth central knob and enjoy a secure, non-slip grip thanks to eco-friendly rubber armor.
- • **See 10x Closer, See Brighter:** Experience razor-sharp HD views with a 42mm objective lens and advanced multi-coated optics for unmatched clarity.

## Overview

The COSTIN 10x42 Monocular Telescope combines powerful 10x magnification with a wide 400ft field of view at 1000 yards, enhanced by BAK4 prism multi-coated HD lenses for superior brightness and clarity. Featuring a built-in rangefinder scale and directional compass, it’s designed for precision and convenience with one-hand focusing and durable, fogproof construction. Compact and portable, it’s ideal for golf, wildlife observation, hiking, and more, complete with a full accessory kit for immediate use.

## Description

COSTIN 10x42 Monoculars, Handheld Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, Multi Coated HD Lens, Wide Field View and Portable Fogproof Golf Scope-Elegent BlackContent:  1X High-Powered Sports Optical Lens Monoculars  1X Carrying bag 1X Hand strap 1X Paracord bracelet 1X Microfiber cleaning cloth 1X User Munual After Sales:  We do take full responsibility for our COSTIN OPTICS Branded products. Should you encounter any difficulties with our gears feel free to contact us immediately. We will assist you to the best of our knowledge.  The COSTIN USPTO serial: 87615036 - is a registered trademark protected by US Trademark Law. All products supplied by COSTIN are exclusively manufactured by COSTIN.

## Features

- High Definition & 10x Magnification - See things 10x closer and Get Clearer and Brighter range of view with 42mm objective diameter and 24.5mm eyepiece which provide detailed and steady up-close views of distant objects without worrying about your hand shaking. Double sided upgraded version of the green AR with superior light transmission and brightness, guarantee greater and clear magnification with field of view.
- Durable & One-Hand Focus- To adjust focal length easily and make it the most user friendly nature monocular. Eco-friendly Rubber External Armor provides a secure, non-slip grip, and durable external protection.
- Golf Scope- A more powerful compact Built-in ranging reticule, ranging slide rule function(need calculate by hand)
- Pocket Size- Handy and portable as includes a Nylon carrying pouch for transportation, suitable for many outdoor activities, And you can carry them everywhere with it in your pocket, Ideal for bird watching, nature & wildlife, sporting events, traveling, hiking, concerts. 400ft field of view at 1000 yards makes it one of a perfect Hunting Accessories also.
- What you get－ Monocular, carrying case, hand strap,Paracord bracelet, cleaning cloth and user manual.

## Product Details

- **Brand:** COSTIN
- **Eye Piece Lens Description:** Prism
- **Focus Type:** Manual Focus
- **Finderscope:** Reflex
- **Lens Coating Description:** Multi-Coated
- **Manufacturer:** COSTIN
- **UPC:** 714046702445

## Images

![COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black - Image 1](https://m.media-amazon.com/images/I/61RiMCRNBWL.jpg)
![COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black - Image 2](https://m.media-amazon.com/images/I/615TEsxvomL.jpg)
![COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black - Image 3](https://m.media-amazon.com/images/I/51Xfd44z1rL.jpg)
![COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black - Image 4](https://m.media-amazon.com/images/I/71N+oPkuUUL.jpg)
![COSTIN 10x42 Monocular Telescope, Central Focusing with Built-in Rangefinder Scale Plus Directional Compass, BAK4 Prism Multi Coated HD Lens, Wide Field View Portable Fogproof Golf Scope-Elegent Black - Image 5](https://m.media-amazon.com/images/I/81F3hiU+TPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Compass got stuck but........
*by D***S on March 12, 2018*

I loved the unit in terms of the apparent quality.It felt heavy and not cheap. The optics were superb. I loved its size, thestrap, carrying case, lens caps, large lens cleaning rag and emergency rope wrist band. However, Ipurchased it for the compass built in. This company is responsive and sent me a photo ofwhat it looks like through the lens before I bought it. After receiving this unit and trying it out, immediately, anddisappointingly, the compass got stuck. I had to move the unit about to getthe compass to unstick. And then it stuck again. Costin does respond to your emails in a day. No working phone number is given however. I love phone numbers and tried to call them when the compass stuck. I did not want to send it back but did. I gave it 3 stars because the optics are so good and the rubber finish it has. Buy this if you don't need the compass. Update. The company sent me an email apologizing and offered to send me another free. I accepted. When I took the new one out if functioned perfectly. The second time, the compass got stuck a few times and a bubble developed that, occasionally, got in the way of the compass reading. The compass was still usable however. Now today I took it out and used the compass again and the bubble was gone and it did not stick. Go figure??? I gave it another star. Now if I didn't care about the compass this unit and the customer service would get 5 stars easily. It is a great buy for the money!

### ⭐ Returned
*by K***R on December 27, 2018*

Starting off, all instructions are in Chinese, no English translation. Got them translated and found the reticle/verneer would not focus, parallax is horrible and not adjustable.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-22*