Selecting an Eyepiece, Focusing Telescope

HOW TO USE YOUR NEW TELESCOPE

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. A formula can be used to determine the power of each eyepiece: telescope OBJECTIVE lens focal length divided by EYEPIECE focal length = MAGNIFICATION (e.g. Using the 20 mm lens, a sample calculation would look like this: 700 mm / 20mm = 35x or 35 power. Telescope models will vary in focal length).

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 105x or

135 power. (35 x 3 = 105x or 105 power). The magnification calculation would look like this: 700 mm/ 20mm =35 power. 35 power x 3 = 105 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).

2.Fully extend focusing tube by turning Rack and Pinion Focusing Mechanism.

3.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 Main Telescope Tube and establish a well-defined target. (see Focusing Telescope section)

2.Looking through Wide Field Finderscope, alternate tightening each Finderscope Adjustment Screw until the red dot of Wide Field Finderscope are precisely centered on the same object already centered in Main Telescope Tube's field of view.

3.Now, objects located first with the Wide Field Finderscope will be centered in the field of view of the main telescope.

Never Look Directly At The Sun With

Your Telescope

Permanent Damage

To Your Eyes May Occur

78-9500 specifications

Bushnell is a name synonymous with quality optics, and their Bushnell 78-9500 model is no exception. Designed for outdoor enthusiasts, this product represents a blend of cutting-edge technology and robust features that cater to both amateur and professional users alike.

One of the standout features of the Bushnell 78-9500 is its impressive magnification capabilities. Offering a 7-15x variable zoom, users can easily adjust the level of magnification to suit their specific needs, whether it’s birdwatching, hunting, or simply enjoying scenic vistas. This flexibility enhances the user experience by allowing for clear views of distant subjects.

Another essential characteristic of the Bushnell 78-9500 is its high-quality optics. The device is equipped with fully multi-coated glass that maximizes light transmission, resulting in brighter and more vibrant images. Additionally, the BaK-4 prism system enhances clarity and contrast, ensuring that users have a sharp and detailed view, even in low-light conditions. This is particularly beneficial for early morning or late evening excursions where visibility can be challenging.

Durability is a key factor for outdoor gear, and the Bushnell 78-9500 does not disappoint. Constructed with a rugged, rubber-armored housing, this model is designed to endure the rigors of outdoor activities. It is also 100% waterproof and fog proof, thanks to its O-ring seals and nitrogen purging, making it ideal for use in various weather conditions.

The ergonomic design of the Bushnell 78-9500 adds to its appeal. It features a comfortable grip and an intuitive focus knob that allows for quick adjustments, making it easy for users to lock in on their desired subject. Additionally, the lightweight design ensures that users can carry it without added strain during extended outdoor activities.

Finally, the Bushnell 78-9500 is compatible with various accessories, including tripods and smartphone adapters, enhancing its versatility. This feature allows users to capture images and share their observations easily, broadening the scope of its application.

In conclusion, the Bushnell 78-9500 stands out as a powerful and versatile tool for anyone passionate about exploring the great outdoors. With its high-quality optics, durable construction, and user-friendly features, it is an excellent choice for those seeking a reliable and effective pair of binoculars. Whether for wildlife observation, sports events, or simply enjoying nature, the Bushnell 78-9500 delivers exceptional performance.