what eyepieces do i need?
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A good general collection of eyepieces for beginners would include a high magnification eyepiece; a wide/ultra-wide angle eyepiece; a medium power, general purpose eyepiece; and/or a Barlow lens. This will give you a good selection of magnifications and FOVs, ready for use on many different objects.
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Probably the most important lenses in binoculars are the convex lenses. These lenses make small (distant) objects look bigger (closer). Some binoculars also use fine concave lenses to help focus images more clearly for your eyes.
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['Your eyes must be healthy. ... ', 'Your cornea must have sufficient thickness. ... ', 'Your pupils must not be too large. ... ', 'Your prescription must be within certain limits. ... ', 'You must be old enough. ... ', 'Your vision must be stable.']
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['Circle Round Glasses. ... ', 'Vintage Cat-Eye Glasses. ... ', 'Dapper Semi-Rimless Glasses (Clubmaster) ... ', 'Slim, Narrow Oval & Rectangular Tiny Reading Glasses. ... ', 'Stylish Flat Top Glasses. ... ', 'Statement & Bedazzled Eyeglasses. ... ', 'Classic Hipster Black Rimmed Glasses. ... ', 'Wooden Effect Eyeglasses.']
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There are two basic types of telescopes, refractors and reflectors. The part of the telescope that gathers the light, called the objective, determines the type of telescope. A refractor telescope uses a glass lens as its objective.
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The Refracting Telescope or Refractor uses a lens or lenses as the telescope's Primary Objective. Binoculars are a type of Refractor; occasionally you will find reflecting binoculars.
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["70's-80's Oversized Square Eyeglasses. Square lenses are timeless. ... ", 'Thin & Lightweight Metal Eyeglasses. ... ', 'Sporty Aviator Glasses. ... ', 'Circle Round Glasses. ... ', 'Vintage Cat-Eye Glasses. ... ', 'Dapper Semi-Rimless Glasses (Clubmaster) ... ', 'Slim, Narrow Oval & Rectangular Tiny Reading Glasses. ... ', 'Stylish Flat Top Glasses.']
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['1-Day Acuvue Moist Multifocal. Pros: Comfortable. ... ', 'Air Optix Aqua Multifocal. Pros: Comfortable. ... ', 'Bausch and Lomb Ultra for Presbyopia. Pros: Comfortable. ... ', 'Biofinity Multifocal. Pros: ... ', 'Clariti 1 Day Multifocal. Pros: ... ', 'DAILIES AquaComfort Plus Multifocal. Pros: ... ', 'Proclear 1 Day Multifocal. Pros: ... ', 'PureVision 2 For Presbyopia. Pros:']
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The Konus Emperor binoculars are a very good binocular and good value for money. The 8x42 and 10x50 versions give a brighter image than the 10x42 and 12x50 versions. Their Titanium model also gives a good quality sharp image too.
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Eyepiece: Otherwise referred to as an ocular, the eyepiece is the lens nearest to your eye. Total magnification of a microscope is determined by the sum of the eyepiece magnification multiplied by that of the objective lens.
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Dobsonian telescopes are incredibly good and are great for amateurs and professional astronomers alike. They are also very economical compared to other telescopes. The optical part of the telescope or OTA (Optical Tube Assembly) is the same as a Newtonian reflector telescope.
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['Frame front. This is the main part of your glasses frame. ... ', 'Endpieces. At the outermost edges of your frame front, are the glasses endpieces. ... ', 'Bridge. What is the bridge on glasses? ... ', 'Lenses. ... ', 'Temples. ... ', 'Temple tips. ... ', 'Hinges. ... ', 'Screws.']
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['Surveying Transit. The surveying transit resembles a small telescope and is mounted on a tripod. ... ', 'String and Stakes. ... ', 'Shovels. ... ', "Mason's Trowel and Small Pickaxe. ... ", 'Garden Clippers and Small Saws. ... ', 'Brushes. ... ', 'Paper and Plastic Bags. ... ', 'Buckets, Dustpans, Wheelbarrows.']
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Your best eye, or both together, should meet a minimum 20/70 requirement with your corrective lenses. This score will require a restriction on your license, limiting your driving to daylight hours, and you may not drive faster than 45 MPH.
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["70's-80's Oversized Square Eyeglasses.", 'Thin & Lightweight Metal Eyeglasses.', 'Sporty Aviator Glasses.', 'Circle Round Glasses.', 'Vintage Cat-Eye Glasses.', 'Dapper Semi-Rimless Glasses (Clubmaster)', 'Slim, Narrow Oval & Rectangular Tiny Reading Glasses.', 'Stylish Flat Top Glasses.']
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At its price, the Atomic Beam Night Hero Binoculars is a good buy. It is good for daytime use. Although the 30 mm objective lens is quite small for a serious binocular, the 10X magnification is adequate for several activities like sight-seeing and bird-watching.
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Another lesson introduced you to the reflecting and refracting telescopes. In summary, a refracting telescope uses a lens, sort of like those in magnifying glasses, and a reflecting telescope uses a mirror. There are also the catadioptric telescopes, which use a combination of lenses and mirrors.