What Is a NcSTAR 10 X 21 Spy Monocular? – Quick & Easy Guide

People often ask, what is a NCSTAR 10X21 spy monocular?

Let’s find out!

What Is a NCSTAR 10X21 Spy Monocular?

The NCSTAR 10X21 is the most popular spy monocular on the market. It has been around for over 20 years and is still one of the best choices for budget-friendly, high-quality binoculars.

The NCSTAR 10X21 features a large field of view with an excellent image quality that will satisfy even the most demanding users. This model also comes in two different versions: the standard version and the waterproof version.

This review will focus on the standard version of this model.

Why Choose A NCSTAR 10X21 Monocular?

If you are looking to buy a cheap spy monocular, then there is no better choice than the NCSTAR 10X21. This model offers great value for money and it can be yours at a very affordable price. In fact, it is one of the cheapest spy monoculars available today.

It is made from durable materials and it is designed to withstand harsh weather conditions. You can use it all year round without worrying about getting wet or having your equipment damaged by rain or snow.

The NCSTAR series is known for its durability and reliability. They have been tested under extreme conditions and they have proven their worth time after time.

How Does The NCSTAR 10X 21 Compare To Other Models?

The NCSTAR series has been around for over twenty years now. During these years, they have become some of the most trusted brands in the world of optics.

They offer top-notch products that are built to last and will give you a lifetime of service. They also come with warranties that can be used by anyone who purchases them.

If you’re looking for a new pair of glasses or even sunglasses, then you should definitely consider buying from this brand.

In this article, we compare the NCSTAR 10×21 with other models on the market today. We look at how it compares to the Leupold VXR 8x42mm, the Vortex Viper PST 6x32mm, the Nikon Monarch 7x50mm, the Swarovski Z20x40mm, the Zeiss Conquest 5x25mm, and the Leica M10x36mm.

NCSTAR 10X21 vs Leupold VX8x42mm

The Leupold VX R 8x42mm is another good option if you want a budget-friendly spy monocular. However, it does not feature as many advanced features as the NCSTAR 10X 21.

Both models share similar characteristics such as the same magnification range (6x – 12x), the same eye relief distance (9 mm), and the same weight (0.5 lb).

However, the NCSTAR 10X2 1 has a larger field of view (16°) while the Leupold Vxr 8x42mm only has a 14° viewing angle.

Another difference between both models is that the Leupold Vrx 8x42mm is equipped with a tripod mount while the NCSTAR 10X 2 1 doesn’t.

When it comes to image quality, the Leupold V XR 8x42mm is slightly superior to the NCSTAR 10X22. It produces sharper images and it has more contrast.

When it comes to optical performance, the Leupold is slightly better than the NCSTAR 10×2 1.

NCSTAR 10×21 vs Vortex Viper PST 6x 32mm

The Vortex Viper PST 6x is another good budget-friendly spy monocle. It is also a well-known name among serious photographers.

Like the Leupold V RX 8x42mm, it shares similar characteristics such as the similar magnification range (6x – 12x), the same field of view (14°), the same eye relief (9 mm), and weight (0.5 lbs).

But the NCSTAR 10X 22 has a slightly bigger field of view (17°) compared to the Vortex Viper PST 6 x 32mm which has a 15° viewing angle.

When it comes down to image quality, the NCSTAR 10×22 is slightly better than the Vortex Viper PST 6X 32mm. It produces sharper images with higher contrast.

When it gets to optical performance, the NCSTAR 10 X2 1 is slightly better than the Viper PST 6x 32 mm.

NcSTAR 10X21 vs Nikon Monarch 7x 50mm

The Nikon Monarch 7x is yet another great budget-friendly spy monoscopic. It is also a very popular choice among professionals.

This model shares similar characteristics such as a similar magnification range (7x – 16x), the same eye-relief distance (11 mm), and the same field of view(15°).

However, the Nikon Monarch 7X is heavier than the NCSTAR 10X21 (1lb 3 oz versus 0.5lbs).

It also has a smaller field of view (13°) compared to the NCSTAR 10x 2 1 (17°).

When it comes to imaging quality, the NCSTAR is slightly better than the Nikon Monarch 7x. It produces sharper images, and it has more contrast when compared to the Nikon Monarch 7x.

When it comes to optics, the NCSTAR 10 x2 1 is slightly better. It has a wider aperture and a brighter lens.

what is a ncstar 10 x 21 spy monocular

What Is a NcSTAR 10 X 21 Spy Monocular?

Zeiss Conquest 5x 25mm

The Zeiss Conquest 5x 25 mm is a very compact spy monocular. It weighs just 0.3 pounds and its size makes it easy to carry around.

It has a wide viewing angle of 30° and a magnification range from 5x to 25x.

One thing that sets it apart from the rest of the models is that it has a built-in filter system. This means that you can use any type of filters without having to remove them first.

It also has a fast focus speed of 0.25 seconds.

One downside about this model is that it is not waterproof. So if you plan to take it out into the rain or water, make sure that you have a case to protect your device.

If you want something that is lightweight, compact, and affordable, then the Zeiss Conquest 5x25mm is definitely worth checking out.

Zeiss Conquest 4x 24mm

If you are looking for a compact, lightweight, and affordable spy monocular, then the Zeiss Conquer 4x24mm should be at the top of your list.

It is only 0.4 pounds and its size makes carrying it around much easier.

It has a magnification range from 4x to 24x and a viewing angle of 28°.

Its main advantage is that it is fully waterproof. You don’t need to worry about taking it outside because it is completely sealed.

Another feature that sets it apart from other models is that it has an internal focusing mechanism. This allows you to adjust the focus quickly and easily.

You can also change the eyepiece by simply rotating the barrel. The downside of this model is its weight. It is quite heavy at 1 pound.

So if you are planning to carry it around all day long, make sure that you bring along some extra batteries. 


In conclusion, if you are looking for a lightweight, compact, and inexpensive spy monocular, then this is the perfect choice for you.

We hope that this article was helpful If you have any queries feel free to reach out in the comments section below.


  • John Moses

    John is the Editor in Chief here at The Outdoor Stores. His area of expertise ensures that there is no one better to suggest which rifles are most suitable for your hunting experience. He is also available for you to contact him personally to discuss the types of animals you want to hunt and the terrain you will be hunting on. Feel free to read his posts for expert opinion on Rifles, Scopes, Rangefinders, Bonoculars and Monoculars.

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