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How to Use A Monocular – Experts’ Instructions

How to Use A Monocular
Written by Erik Himmel

Hey, what’s a monocular? I would say, “Much like one half of a binocular unit, a small telescope that allows distant visibility (magnification of objects) with one eye.” …. As you’re here on this page, I can see you want to know how to use a monocular and not to bother the science or mechanism of the device. Well, we’ll get to that right away!

How to Use a Monocular? A Detailed Explanation

Using a monocular

Unlike most optical products, the monocular doesn’t include many bells and whistles. So, using a monocular involves little technicality requiring you to focus on a few things. Read my instructions and advice and become a well-informed user soon enough.

1. Getting Started with the Monocular

So, you’re excited to put your hands on your monocular? Here’s how you should and need to start.

Count on the Dominant Eye

Look through your monocular with the eye that has the best (most powerful) vision. Use the right hand for the right eye and the left hand for the left eye. Don’t know how to find out about your own eyes? Well, you can learn the quick yet appropriate method of finding the dominant eye in another article.

Say ‘Yes’ to Your Glasses (If You Have Any)

Don’t worry about your nearsightedness (myopia) or farsightedness (presbyopia) or any ocular issue that requires you to wear glasses. You need to use them too while using a monocular.

Choose a monocular with at least 14mm eye relief (the required distance between your dominant eye and the monocular for an optimal field of view).

Hold the Device Appropriately

Now, you’ll be touching/grabbing your monocular.

  • Take the device up to the level of your eye and hold the barrel near the ocular lens.
  • Your eye and the lens should be as much close as possible but without any physical contact.
  • Keep your forefinger against the brow and the elbow against the body or hold the wrist using the other hand (the one not in use) to keep it still.
  • You may also rest on your stomach with the elbows set on the ground.

Set the Focus

It’s important that you adjust the focus manually and keep working on it as long as you need to get the clearest view of your target.

Typical devices feature a ridged dial that can be rotated using the fingers. Some models may require the user to put both hands on the adjustment component. Keep the dial rotating in all available directions until you get the desired view.

2. Eying the Target

Now is your time to trace your target, follow its movement, and refocus as needed. I’m explaining every bit of it in brief.

Locate Your Target

Don’t ignore the power of naked eyes as they’re the primary tracer of your object, if not the best, and all its surroundings because you aren’t limiting your vision or looking ahead with one eye. So, glace your target and only then, you’re good to have the monocular. Open and use the other eye (the closed one) to retrace your target in case you lose its sight.

Gosky 12x55 High Definition Monocular Telescope and Quick Smartphone Holder - 2019 Newest Waterproof Monocular -BAK4 Prism for Wildlife Bird Watching Hunting Camping Travelling Wildlife Secenery
  • 12x55 high power magnification - have the best view in your outdoor adventures. To see 12x closer with a clear and bright image with the generous, light-gathering 55mm objective wide lens. Perfect for hiking, hunting, climbing, bird watching, ball games, concerts, watching wildlife and scenery.
  • High powered monocular promises brighter, crystal clear views during all your outdoor adventures
  • Ideal for outdoor enthusiasts and wilderness explorers, a handheld and must-have for bird watching, wildlife, hunting, hiking, mountaineering, camping, surveillance and traveling.
  • The long eye-relief with the twist-up eye cup makes this high-end monocular set stand out among competition!
  • Argon purging provides waterproof, fog proof, dustproof and shockproof protection in any weather, and any environment. Rubber armored body strengthen its durability.

Follow It and Adjust the Focus

Most targets tend to movements requiring hunters/observers to follow them every second. Don’t rush while tracking your target. Turn the head slowly (not too much) to keep an eye on it.

You can even move the entire body without changing the placement of the device to follow a target that moves much farther than the point you located it at. Adjust and readjust the focal lens in accordance with the change(s) of the position of both you and the target.

By now, you’ve got yourself familiar with the use of a monocular, though not thoroughly yet. There’s more to understand and apply if and while you aim at learning how to use monocular like an ardent user.

3. Getting Advanced Education: ‘Monocular Cues’?

The term ‘monocular cues’ may sound all Greek to you, but it has a deep correlation with depth perception and great significance to how you understand the position of your target.

A monocular cue refers to what one of your eyes sees and interprets with the other closed. These cues present us the positions of both us and the targets. They let us know how far/near our target animals/objects physically exist from us.

Here’s a quick overview of different cues, so you can understand each of them and thus benefit from a more advanced understanding of your findings.

  • Absolute/Actual size (Even being positioned at the same point, larger targets look closer than smaller ones.)
  • Familiar size (Your familiarity with the shape/size of a target helps you assess how close/far away other objects in the scene are from you.)
  • Relative size (With two targets of apparently the same size, the target that’s actually larger than the other should look closer to you.)
  • Aerial perspective (With multiple targets in the scene, you should see the ones that are farther away from a particular one blurred or somehow hazy.)
  • Linear perspective (With two targets located to be in a parallel position, you should take that the distance of the target to your position increase as the targets meet together.)
  • Interposition/Overlap (Among the two overlapped targets, you tend to take the one to be closer that partially blocks the appearance of the other target)
  • Motion parallax (If you’re to move with multiple targets, the closer one will move faster with you than others.)
  • Lighting and shading (Obscured/shaded targets appear farther than bright ones.)
  • Texture gradient (Assume that you’re watching a bird with colorful plumage. The colorful spots will start becoming less visible as it moves farther away from the original position you detected it at.)

Enough of science! Yeah, I understand you wished to have something more enjoyable. But, remember, my friend, these cues are what let us gain the complete experience of a scene along with our visual interpretation of where we are in relation to what we target in the scene.

4. Read This If You Have an Infrared/Night Vision Monocular!

Modern outdoor enthusiasts in a large number tend to the uses of the special monocular designed to serve at night. Have you managed to get a futuristic night vision monocular? If you already have, keep the following things in mind.

Read This If You Have an Infrared/Night Vision Monocular

  • Your monocular encases a nearly invisible infrared light. Don’t ever look closely and directly into that light. It could impair/harm your eyesight seriously and permanently.
  • Don’t use the device in conditions privileged with bright lights which could eventually damage the image intensifier.
  • When you won’t use your device, consider using the objective lens cover.
  • You might see some bright/dark spots in the image intensifier tube of the monocular. Don’t worry. It’s a typical case.

5. When and How to Use a Monocular?

  • If you’re a climber, explorer, or hiker with any experience level, you can get a top-of-the-line monocular and start using wisely.
  • Don’t use the higher magnification settings.
  • Do not remain busy with activities like driving, paddling, running, or walking while using.
Vortex Optics Solo Monocular 8x25
  • 8x magnification and 25mm objectives lens, the Solo Monocular is a small, lightweight optic with fully multi-coated lenses, increasing the light transmission and resolution giving you the clear, crisp images you want.
  • The monocular is fully rubber armored providing a non-slip grip to the user and making it extremely durable.
  • Nitrogen purged and o-ring sealed, the Solo delivers waterproof and fogproof performance in any environment.
  • The adjustable eyecup allows for comfortable viewing with or without glasses.

Keeping Your Device in Order and Safe

You might be thinking it’s a part of the maintenance process. You’re right! But I must tell it’s also a part of how to use a monocular. Won’t you agree? Then, read the following points.

Keeping Your Device in Order and Safe

  • Use a strap to save the device from dropping, breaking, and wear.
  • Avoid touching the scope’s lenses.

the scope’s lenses

  • Don’t forget to use the lens cap every time you’re done using the device.
  • Use mild, high-quality eyeglass wipes or similar solutions to clean the device. No tissue papers, shirts, or cleaners with rough substances, please!

Don’t forget to use the third bullet

That’s all I wanted to inform you, and I’m happy I did. Don’t hesitate to let me know if you’ve any further question. Know that I want to help!

About the author

Erik Himmel

A Part-Time Firearm Instructor

Hi, this is Erik. We all know firearms are dangerous, but only when one doesn’t know how to use and care for them. I have 15+ years of experience with different types of guns and for the last 10 years, I have taught numerous people how to hold and shoot a gun while staying safe and keeping the surroundings unharmed. My neighbors are some of my biggest admirers who enjoy talking to me about their guns, firearms safety and maintenance.

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