4.Insert Eyepiece (8) into focusing tube to begin viewing.

Your Bushnell Voyager Telescope is now ready to be used. To obtain the fullest enjoyment from your telescope, please refer to the additional information below.

HOW TO USE YOUR NEW TELESCOPE

Astronomical telescopes are designed in such a way that the image you will see appear UPSIDE DOWN and REVERSED, this is acceptable for viewing celestial bodies.

Selecting an Eyepiece:

1.You should always start viewing with the lowest power eyepiece, which in this case is the 20 mm lens. Note: the base power of each eyepiece is determined by the focal length of the telescope objective lens, which for this model is 540 mm. A formula can be used to determine the power of each eyepiece: telescope OBJECTIVE lens focal length EYEPIECE focal length = MAGNIFICATION (e.g. Using the 20 mm lens, the calculation would look like this: 540 mm ÷ 20mm = 27x or 27 power.)

2.Included with this telescope is a Barlow lens. Barlow lenses are used to double or triple the power of your telescope. Place your Barlow between the focusing tube and the eyepiece. Using the example above, your 3x Barlow lens would give you a total power of 81x or 81 power. (27 x 3 = 81x or 81 power)

Focusing Telescope:

1.After selecting the desired eyepiece, aim main telescope tube at a land-based target at least 200 yards away (e.g. A telephone pole or building). Fully extend focusing tube by turning Rack and Pinion Focusing

Mechanism (1).

2.While looking through selected eyepiece (in this case the 20 mm), slowly retract focusing tube by turning

Rack and Pinion Focusing Mechanism until object comes into focus.

Aligning Finderscope:

1. Look through Eyepiece (8) and establish a well-defined target. (see focusing telescope section) Tighten all lock knobs (Declination, Latitude, Right Ascension, and Horizontal Axis) so that telescope’s aim is not disturbed.

2.Looking through Finderscope (7), alternate tightening each Finderscope Adjustment Screw until crosshairs of Finderscope are precisely centered on the same object already centered in the Eyepiece (8) field of view.

3.Now, objects located first with the Finderscope (7) will be centered in the field of view of the main telescope.

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Bushnell 78-9540 manual HOW to USE Your NEW Telescope, Selecting an Eyepiece, Focusing Telescope, Aligning Finderscope
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78-9540 specifications

The Bushnell 78-9540 is a versatile and innovative outdoor product designed to enhance the experience of adventurers and outdoor enthusiasts. One of the standout features of the 78-9540 is its powerful 10x magnification, paired with a 50mm objective lens. This combination provides a bright and clear field of view, making it an excellent choice for activities such as bird watching, hunting, and sporting events.

The optics of the Bushnell 78-9540 utilize high-quality multi-coated lenses that ensure maximum light transmission. This results in enhanced brightness and clarity, even in low-light conditions. The inclusion of Bak-4 prisms optimizes image quality, delivering a sharp and vibrant view, which is essential for spotting wildlife or tracking distant targets.

Another significant aspect of the Bushnell 78-9540 is its durable construction. Built with a rugged, rubber-armored outer casing, this binocular is designed to withstand the rigors of outdoor use. It is also fog-proof and waterproof, ensuring that the device remains functional in various weather conditions. The nitrogen purging within prevents internal fogging, allowing users to maintain clear vision in humid or rapidly changing environments.

The ergonomic design of the 78-9540 includes a comfortable grip and a lightweight build, making it easy to handle for extended periods. The twist-up eyecups provide additional comfort for users with or without glasses, enabling everyone to enjoy a full field of view. Additionally, the binoculars feature a smooth focusing mechanism that allows users to adjust the focus quickly and accurately, enhancing their overall experience.

In terms of portability, the Bushnell 78-9540 is designed for easy transport. The compact size, combined with a carrying case and neck strap included in the package, makes it convenient for outdoor expeditions.

Overall, the Bushnell 78-9540 offers a perfect blend of quality optics, rugged durability, and user-friendly features, making it a top choice for anyone looking to elevate their outdoor exploration. Whether you're hiking, camping, or observing nature, this binocular delivers exceptional performance and reliability, ensuring that you never miss a moment of the beauty around you.
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