Description
The telescope is a very practical long-distance observation tool that can help you easily see distant objects clearly. It is very suitable for various outdoor activities such as bird watching observing wildlife watching competitions on site outdoor exploration enjoying scenery and more. Reading the following information will help you learn more about telescope related knowledge and help you choose a good monocular telescope. Magnification 8×42 monocular telescope 8 means 8x magnification and 42 means objective lens diameter of 42mm. 12×50 monocular telescope 12 means 12x magnification and 50 means objective lens diameter of 50mm. The larger the magnification the smaller the field of view and the more susceptible the image is to shaking and instability. Field Of View The range that can be observed through a telescope. Objective Lens Diameter A larger size objective lens can allow more light to pass through increase the amount of incoming light and make the viewing field brighter. Eyepiece Lens Diameter Larger sized eyepiece lenses can expand the viewing field and enhance viewing comfort. Lens Material A high transmittance material that allows more light to pass through. Common materials include glass and resin (also known as organic glass). The transmittance of glass lenses is better than that of resin lenses. Lens Coating Process Different coatings have different effects for example some coatings can improve the transmittance of lenses. Some coatings can effectively block unwanted spectral interference and reduce imaging distortion. Prism The function of a prism is to refract light inside a telescope. The refractive loss of light varies among prisms of different grades. The greater the loss the darker the image and the more distorted the color. Our 25-75×60 spotting scope features 60mm diameter fully coated optical glass lenses which greatly increase the telescope s light intake and enhance viewing brightness. The eyepiece lens is a 21mm diameter coated glass lens providing a large field of view and greater comfort. Professional BAK4 prism greatly reduces the refractive loss of light transmission and more realistically reproduces the color of the observed object. Product Specifications Product Name: 25-75×60 Spotting Scope Magnification: 25x – 75x Zoom Magnification Objective Lens Diameter: 60mm ( 2.36 ) Eyepiece Lens Diameter: 21mm ( 0.83 ) Prism Grade: BAK4 Field Of View: 41m-21m/1000m (123ft-63ft@1000yds) Lens Material: Optical Glass Lens Surface Process: Fully Multi-layer Coated Body Material: Rubber Waterproof Grade: Not Waterproof Size: 30cm x 10cm ( 11.8 x 3.94 ) Weight: 737g ( 1.6 lb) Packing List 1 x Spotting Scope 1 x Enhanced Metal Tripod 1 x Phone Holder 1 x Storage Bag 1 x Cleaning Cloth Precautions For Using Telescopes 1. DO NOT use monoculars to observe the sun as it may harm your eyes! 2. Keep the lenses of the telescope clean to achieve a clear viewing effect. 3. Avoid severe collisions that may damage the optical components inside the telescope.
