Frequently Asked Questions about Spotting Scopes

 

Our detailed answers to frequently asked questions about spotting scopes will help you learn more about their features, benefits, and how to get the most out of them. If you can’t find the answer to your question, then check out our spotting scope buying guide and feel free to contact us – we’re always happy to help!

What is a spotting scope, and how is it different from binoculars?

A spotting scope is a portable, high-powered telescope with magnifications ranging from 15x to 60x, commonly used for observing distant objects like wildlife, birdwatching, hunting, or target shooting. Unlike binoculars, which provide a wide field of view with less magnification, spotting scopes offer greater magnification, making them ideal for detailed, long-range viewing. Spotting scopes also often feature angled or straight eyepieces, which give them more flexibility for different viewing applications.

What magnification do I need in a spotting scope?

Spotting scopes typically offer zoom magnifications, allowing you to adjust the magnification depending on your needs. For general birdwatching or wildlife observation, a zoom range of 20x to 40x is often sufficient to get clear, detailed views. For target shooting, long-distance observation, or digiscoping, higher zoom magnifications, such as 40x to 60x, may be necessary. Keep in mind that as magnification increases, the field of view narrows and the image may become shakier, so using a tripod or other form of stabilisation is recommended at higher magnifications.

What size objective lens do I need for my spotting scope?

The objective lens size affects light gathering and image brightness. A larger objective lens (such as 60mm to 80mm) will gather more light, producing a brighter image, especially in low-light conditions like dawn or dusk. However, larger lenses also make the scope heavier and bulkier. If portability is important, a smaller objective lens may be more convenient, but you’ll sacrifice some light-gathering ability.

What’s the difference between straight and angled spotting scopes?

• Straight spotting scopes have the eyepiece aligned with the body, making them easier to use when observing from a standing position or when quickly aiming at a distant target. They are commonly used for target shooting, range spotting, and viewing from elevated positions, such as from a vehicle, as they provide a direct line of sight without requiring much adjustment.
• Angled spotting scopes have an eyepiece set at a 45-degree angle, making them more comfortable for prolonged use, especially when observing from a seated or prone position. Angled scopes are typically favoured for birdwatching, wildlife observation, and hunting because they allow for easier viewing when looking upward at an angle or sharing the view with others at different heights.

Do I need a tripod for my spotting scope?

Yes, using a tripod with a spotting scope is highly recommended, especially at higher magnifications. Spotting scopes magnify distant objects, and even slight hand movements can cause the image to shake or blur. A stable tripod ensures a steady image, improving the overall viewing experience, particularly for birdwatching, target shooting, or digiscoping. Most spotting scopes do not come with a tripod, so you’ll need to purchase one separately. We also have a tripod buying guide to help you choose the right tripod for your scope based on your needs and budget.

Can I use a spotting scope for stargazing?

Yes, spotting scopes can be used for basic stargazing, but they are not as powerful as telescopes designed for astronomy. With a spotting scope, you’ll be able to observe the moon, some planets, and bright stars, but for deep-sky objects like nebulae or galaxies, a dedicated astronomical telescope is a better option.

What is eye relief, and why does it matter in a spotting scope?

Eye relief refers to the distance between the eyepiece and your eye while still seeing the full field of view. It’s particularly important for people who wear glasses. A spotting scope with long eye relief (15mm or more) will be more comfortable for eyeglass wearers, allowing them to view through the scope without having to remove their glasses or get too close to the eyepiece.

What does field of view (FOV) mean in a spotting scope?

Field of view is the width of the area visible through the scope at a given distance, usually measured in metres or feet per 1000 metres/yards. A wider field of view allows you to see more of the scene at once, which is useful for tracking moving objects like birds or animals. Higher magnifications generally reduce the field of view, so it’s a trade-off between magnification and how much of the scene you can see.

What is digiscoping, and can I use my spotting scope for it?

Digiscoping is the practice of attaching a digital camera or smartphone to a spotting scope to capture high-magnification photos or videos of distant objects. Many spotting scopes are compatible with digiscoping adapters that make it easy to connect your camera or phone. This technique is particularly popular among wildlife photographers, birdwatchers, and target shooters who want to document distant subjects with detailed clarity. We offer a range of digiscoping adapters to choose from, making it simple to get started with your current spotting scope.

What are ED and HD glass, and do I need them in a spotting scope?

ED (Extra-low Dispersion) glass and HD (High Definition) glass are premium types of optics designed to minimise chromatic aberration (colour fringing) and significantly enhance image clarity, sharpness, and contrast. These high-end glass types provide the best quality optics available in spotting scopes, especially at higher magnifications where optical distortion can become more noticeable. If you're serious about wildlife watching, birdwatching, or long-distance viewing, ED or HD glass can make a substantial difference in the quality of the image. While they tend to increase the overall cost of the scope, if you can afford it, investing in ED or HD glass is highly recommended for the best viewing experience.

Why is my image blurry at high magnification?

Blurry images at high magnification are often caused by heat distortion, atmospheric conditions, or insufficient stabilisation. High magnification amplifies any movement, including air currents and vibrations. Using a sturdy tripod, avoiding high temperatures that cause heat waves, and staying within the optical limits of your scope can help improve image clarity. Lowering the magnification can also result in a sharper image under difficult conditions.

How do I clean and maintain my spotting scope?

Spotting scopes require minimal maintenance, but regular cleaning is essential to keep your lenses clear and your views sharp. To clean the lenses, use a soft, lint-free cloth or a specialised lens cleaning pen to gently remove dust, smudges, and fingerprints. Avoid using harsh chemicals or abrasive materials, as they can damage the lens coatings. Additionally, some spotting scopes come with special coatings that repel water and dirt, making the lenses easier to clean and providing better protection in harsh weather conditions. When not in use, store your spotting scope in a dry place and keep it in a protective case to prevent dust buildup and accidental damage. We also offer cleaning kits that include all the tools you need to maintain your scope.

What are waterproof and fog-proof spotting scopes?

Waterproof and fog-proof spotting scopes are sealed with O-rings and filled with nitrogen gas to prevent water, moisture, and internal fogging from damaging or clouding the optics. Even if you don’t plan on using your spotting scope in rainy conditions, waterproofing is important. Changes in temperature, such as moving from a warm environment to a cooler one, can cause non-waterproof scopes to fog up internally, hindering visibility. Waterproof and fog-proof features ensure clear views in a variety of weather and temperature conditions, making them essential for outdoor use.

What is the advantage of a zoom eyepiece on a spotting scope?

A zoom eyepiece allows you to adjust the magnification on the fly, typically ranging from 15x to 60x. This flexibility is particularly useful for scanning wide areas at lower magnification, then zooming in for a closer, more detailed view of a specific object. Most spotting scopes come equipped with zoom eyepieces, providing versatility for various activities such as birdwatching, hunting, and target shooting. The ability to change magnification without switching eyepieces makes zoom eyepieces an invaluable feature for dynamic observation scenarios.