Prism Binocular
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US $1.00
Telescope Binoculars Provide Better Clarity
The difference between a telescope and telescope binoculars is one eye. With a telescope you peer through the lens with one eye and with telescope binoculars you use them both. Additionally, telescope binoculars are similar to traditional binoculars, only with a much longer focal length.
It has been said that a person can see more in the sky with a good pair of binoculars than with a cheap telescope, and telescope binoculars are designed with star gazing in mind with wider aperture opening to allow more light into the lenses, offering a brighter view of the viewing subject. There are many binoculars on the market which can serve as telescope binoculars with the right focal length and magnification power, along with a reasonably wide lens opening.
Porro prism binoculars are better suited for night time gazing as they absorb less light through the prism path as do roof prism binoculars and will render a much brighter image when used as telescope binoculars in the typically low light conditions of nighttime viewing. However, upgrading optical quality and lens coatings are rapidly allowing the manufacturing of roof prism binoculars to meet the quality of porro prism units and they are gaining in popularity despite the higher cost.
Mount Telescope Binoculars For Stability
When using traditional binoculars as telescope binoculars it is best to have a unit with the capability to mount to a stable object such as a tripod or wooden deck to allow for better stability as well as in keeping them pointed in the same direction. Much like a telescope, they can be used to spot smaller objects in the sky, but can quickly lose sight of the object if moved and you will have to start the search all over again.
When looking for binoculars to double as telescope binoculars the numbers are important to know and understand. Binoculars are usually listed with two numbers, for example 10 X 50. This would indicate a magnification factor of 10, meaning the object will appear to be 10 times larger than the original and the diameter of the objective lens, in this case 50, determines the light gathering capability of the lens. While an objective measure of 30 is good for daytime use, a 50 would provide typically good views at night.
To be effective as telescope binoculars, a magnification of 100 with an objective opening of 70 or more would be preferred. Remember that the longer the magnification and lens opening the more the unit is subject to shake when being held in the hands. A tripod or mount will reduce this and is virtually necessary with longer lenses.
About the Author
Ann Marier has written many articles on
health questions
providing helpful tips and advice. Read all about her latest articles on telescopes and how to use a
child telescope
to generate their interest in the universe.
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Roof Prism Binocular 8x42 $219.99 Waterproof hand-held binoculars fit perfectly in any handbag or jacket pocket. OVERVIEW: The Roof Prism 8x42 Binocular series of compact binoculars takes incredible BaK-4 prisms and True Color lens coatings and transforms them into a phenomenally performing optic. LENS QUALITY: These incredible binoculars provide maximum light transmission and optimal brightness, and let any outdoorsman or sports aficionado explore and enjoy their surroundings to the fullest extent. From early dawn to late dusk, the optimum color fidelity and clarity of image enhance any viewing experience, while a generously long eye relief reduces potential eye strain. STYLE: Every Roof Prism 8x42 Binocular binocular boasts a rugged, yet lightweight, rubber armored body that is nitrogen filled for the highest level of waterproofing and fog proofing possible. The Roof Prism 8x42 Binocular series is taking the ? Roof Prism 8x42 Binocular of Optics? to a whole new level. FEATURES: Rubber armored body True Color lens coatings Multicoated lenses BaK-4 roof prisms Central focusing knob Nitrogen filled and O-ring sealed for 100% waterproof / fog proof / dustproof construction 8x42 and 10x42 magnifications INCLUDED ACCESSORIES: Durable carrying case One-piece eye covers Easy on / off objective lens covers Neck strap |
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Roof Prism Binocular 10x42 $239.99 Waterproof hand-held binoculars fit perfectly in any handbag or jacket pocket. overview: the roof prism 10x42 binocular series of compact binoculars takes incredible bak-4 prisms and true color lens coatings and transforms them into a phenomenally performing optic. lens quality: these incredible binoculars provide maximum light transmission and optimal brightness, and let any outdoorsman or sports aficionado explore and enjoy their surroundings to the fullest extent. from early dawn to late dusk, the optimum color fidelity and clarity of image enhance any viewing experience, while a generously long eye relief reduces potential eye strain. style: every roof prism binocular boasts a rugged, yet lightweight, rubber armored body that is nitrogen filled for the highest level of waterproofing and fog proofing possible. the roof prism series is taking optics to a whole new level. features: rubber armored body true color lens coatings multicoated lenses bak-4 roof prisms nitrogen filled and o-ring sealed for 100% waterproof / fog proof / dustproof construction 8x42 and 10x42 magnifications included accessories: durable carrying case one-piece eye covers easy on / off objective lens covers neck strap |
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Roof Prism Binocular 8x32 $99.99 GREAT FOR SPORTING EVENTS AND CONCERTS. OVERVIEW: The Roof Prism 8x32 Binocular series of compact binoculars are the perfect combination of performance, quality and affordability that provide proven performance for better results where it counts? in the field! LENS QUALITY: Only the highest quality multicoated optics are used in every 8x32 Binocular, advanced with broadband technology to increase light transmission throughout the visible spectrum, resulting in truer color representation and a brighter image for the user. A wide field of view paired with a long eye relief further enhances the image being viewed while also making it easier to see objects at all distances. STYLE: The ribbed rubber armor on the 8x32 Binocular?s body not only ensures a firm gripping area but also acts as a shock absorber against dropping or everyday wear. The large, ribbed focus wheel is easy to use, even while wearing gloves; and the roof prism design makes for a slimmer, easier to handle product. The dual twist-up eye cups easily adjust to each user?s personal eye relief setting and are protected by attachable eyepiece and objective lens covers. The 8x32 Binocular is exactly what every quality and feature savvy outdoorsman needs! FEATURES: Rubber armored body True Color™ lens coatings Multicoated lenses BaK-4 roof prisms Central focusing knob Nitrogen filled and O-ring sealed for 100% waterproof / fog proof / dustproof construction 8x25, 8x32 and 8x42 magnifications INCLUDED ACCESSORIES: Durable nylon carrying case One-piece eye covers Easy on / off objective lens covers Special lens cleaning tissue Neoprene neck strap |
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Snug Fit Porro Prism Binocular Case Olive Green SNPPOD $22.99 Snug Fit Binocular Case, Snug Fit Binocular Case Colors Snug Fit Porro Prism Binocular Case Olive Green |
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Brunton Eterna E1032-CAMO10 x 32 Binocular - 10x 32mm - Waterproof, Fogproof, Armored - Prism Binocular FE1032CAMO $308.3 Brunton Eterna E1032-CAMO10 x 32 Binocular - 10x 32mm - Waterproof, Fogproof, Armored - Prism Binocular FE1032CAMO |
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Pentax DCF SW 8 x 25 Binocular - 8x 25mm - Fogproof, Armored, Waterproof - Prism Binocular 62593 $151.54 Pentax DCF SW 8 x 25 Binocular - 8x 25mm - Fogproof, Armored, Waterproof - Prism Binocular 62593 |
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Brunton ECHO1042-CAMO10 x 42 Binocular - 10x 42mm - Armored, Fogproof, Waterproof - Prism Binocular FECHO1042CAMO $208.54 Brunton ECHO1042-CAMO10 x 42 Binocular - 10x 42mm - Armored, Fogproof, Waterproof - Prism Binocular FECHO1042CAMO |
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Canon 12 x 36 IS II Binocular - 12x 36mm - Prism Binocular 9332A002 $879.27 Canon 12 x 36 IS II Binocular - 12x 36mm - Prism Binocular 9332A002 |
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Brunton NRA LARAMIE1026 10 x 26 Binocular - 10x 26mm - Prism Binocular FLARAMIE1026 $21.27 Brunton NRA LARAMIE1026 10 x 26 Binocular - 10x 26mm - Prism Binocular FLARAMIE1026 |
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Binocular $9.49 Binocular |
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Natureview 8x40 Porro Prism Birding Binocular $35 Description:The Bushnell 8x40 Birder Binocular is a specially designed unit meant to please the budget-conscious bird watcher or naturalist who wants great views without great cost. It provides good magnification for birding, with a comfortably large exit pupil that's easy to keep steady in front of your eyes. The porro prism design provides a great sense of depth to your subjects thanks to the wide spacing between the objective lenses.Features:An entry-level porro prism birding binocular with a 7 angle of viewBK7 Porro prismsMulticoated opticsTextured center focus knobRugged, non-slip rubber armorPeel-down style rubber eyecupsCan be used with tripods, monopods, and car window supportsSpecifications:Prism Type:PorroMagnification:8xObjective Lens Diameter:40 mmAngle of View:6.3Field-of-View:330' @ 1000 yd / 109.56 m @ 1000 mMinimum Focus Distance:14.0' / 4.27 mExit Pupil Diameter:5.0 mmEye Relief:12 mmSize:180*150*52mmFocus Type:Center |
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Bushnell PermaFocus 10 x 42mm Roof Prism Binocular $69.95 BUSHNELL 171043 PERMAFOCUS 10 X 42MM ROOF PRISM BINOCULAR? 10 x 42mm ? 305' field of view ? PermaFocus ? Never needs focusing ? Fully coated optics ? Twist-up eye cups |
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Bushnell / Bushnell H20 Series 8x42 WP/FP Porro Prism Binocular / 134218 $97.57 Bushnell - Bushnell H20 Series 8x42 WP/FP Porro Prism Binocular - 134218 |
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Bushnell / Bushnell H20 Series 8x42 WP/FP Roof Prism Binocular / 158042 $93.9 Bushnell - Bushnell H20 Series 8x42 WP/FP Roof Prism Binocular - 158042 |
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Bushnell / Bushnell H20 Series 10x42 WP/FP Roof Prism Binocular / 150142 $108.43 Bushnell - Bushnell H20 Series 10x42 WP/FP Roof Prism Binocular - 150142 |
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Bushnell / Bushnell H20 Series 12x42 WP/FP Porro Prism Binocular / 134212 $95.15 Bushnell - Bushnell H20 Series 12x42 WP/FP Porro Prism Binocular - 134212 |
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Bushnell / Bushnell H20 Series 7x50 WP/FP Porro Prism Binocular / 157050 $95.15 Bushnell - Bushnell H20 Series 7x50 WP/FP Porro Prism Binocular - 157050 |
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Canon 15 x 50 All-Weather Binoculars with Image Stabilizer - 15x 50mm - Prism Binocular 4625A002 $1541.1 Canon 15 x 50 All-Weather Binoculars with Image Stabilizer - 15x 50mm - Prism Binocular 4625A002 |
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Pentax 8x40 Pcf WP II Waterproof & Fogproof Porro Prism Binocular With 6.3-Degree Angle of View 65807 $143.78 Pentax 8x40 Pcf WP II Waterproof & Fogproof Porro Prism Binocular With 6.3-Degree Angle of View 65807 |
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Pentax 8x25 Ucf WP Waterproof Porro Prism Binocular With 6.2-Degree Angle of View 62608 $115.4 Pentax 8x25 Ucf WP Waterproof Porro Prism Binocular With 6.2-Degree Angle of View 62608 |
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Pentax Compact UCF X II 8x25 Binoculars - 8x 25mm - Prism Binocular 62211 $82.55 Pentax Compact UCF X II 8x25 Binoculars - 8x 25mm - Prism Binocular 62211 |
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Bushnell 7 x 26 Elite Custom Compact Porro Prism Binocular 620726 $269 Bushnell 7 x 26 Elite Custom Compact Porro Prism Binocular 620726 |
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62209 - Pentax Ucf R 8X21 Binocular - 8X 21Mm - Prism Binocular $60.51 with Its Unibody Construction And Compact Dimensions, The Rugged Yet Stylish Pentax 8x21 Ucf R Binocular Provides Outstanding Portability Without Sacrificing Durability. Packed With Features, This Binocular Offers Great Value While Providing Comfortable Viewing in a Wide Range of Casual Observations, Both Indoors And Outdoors. [62209] UPC: 027075078123 UNSPC: 41111717 3.2L x 4.2W x 2.15H 0.71 LB |
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Bushnell Powerview 8x32mm Roof Prism Binocular $72.74 The Bushnell Powerview 8x32mm Roof Prism Binoculars offer a center focus binocular with multi-coated optics for bright, clear images. The binoculars come with carrying case, neckstrap and lens cloth.8x32mmCenter focusRoof prismsDurable black rubber armoringMulti-coated optics for bright, clear imagesTwist-up eye cupsIncludes carrying case, neckstrap and lens cloth18mm eye relief367-foot field of view at 1000-yardsDimensions: 5.75 inches long x 5 inches wide x 1.75 inches high |
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8 x 25 mm Porro Prism Compact Essentials® Binocular $30.88 Compact, versatile, and loaded with features, this binocular is a well-rounded choice. Compact, versatile, and loaded with features, this binocular is a well-rounded choice. Rubber armored compact with Rubicon®-coated objective lenses, carrying pouch and neck strap.Features:Magnification: 8xField-of-View: 336 ft./112 MExit Pupil: 3.1 mmPrism Type: PorroWeight: 9.3 oz.Objective Lens Diameter: 25 mmLens Coating: Fully CoatedFocus Type: Center |
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Leupold Wind River Porro Prism Binocular - 8x23mm Inverted Prism $119.99 Wind River Wilderness optics has always been favorably compared by outdoors writers with some of the world s best names in optics, though they cost far less. The expanded line of entirely redesigned Wind River optics offer an even greater value, because while the price is still reasonable, their performance is exceptional. Well-designed, built solid, 100 waterproof in any condition, and with bright, sharp sight pictures, Wind River Wilderness optics will be a valuable part of any hunting experience for years to come. This is the new Center Focus Inverted Porro Prism binocular by Leupold. The Inverted Porro Prism design of the 8x23 creates a compact body style that is exceptionally slim and easy to grip. Of course, the body is also extremely tough and 100 waterproof as well; to handle whatever the weather and terrain throw your way. They also deliver superior light transmission for a clear, bright sight picture. Aspheric lenses offer a flat field of view. -8x32mm C. F. (Center Focus) Inverted Porro Prism -Actual Magnification: 8x -Field of View 100 Yards: 33. 6 ft. -Angular Field of View: 6. 4 degrees -Weight: 16. 5 ounces -Height: 4. 2 inch -Objective Aperture: 23mm -Twilight Factor: 13. 5 -Exit Pupil: 2. 8mm -Eye Relief: 11. 0mm -Interpupillary Distances: 59-72 Wind River Wilderness Optics are engineered and manufactured to standards set and monitored by the design engineers at Leupold s Oregon factory. The goal is to provide you with reliable performance at a reasonable price. Should service ever become necessary, these fine binoculars are covered by the Wind River Limited Lifetime Warranty. All service work is performed by the same Leupold Product Service Specialist who works on the Leupold Golden Ring products in Oregon. Warranty: Full lifetime guarantee. If any product has defects in materials or workmanship, Leupold will, at their option, repair or replace it free. Even if you are not the original owner. |
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Raven™ 8 x 26mm Open Bridge Roof Prism Binocular $79 The RV-826 Raven Binocular from Carson Optical is an 8 x 26mm roof prism compact binocular with a contemporary open-hinge design. These compact binoculars boast high quality BAK-4 prisms and fully multi-coated optics to ensure a crisp, bright image.The durable, waterproof and fog proof design makes it perfect for outdoor use in all conditions. The RV-826 Binoculars are compact and portable enough to bring with you to concerts, sporting events, bird watching, hiking or any other outdoor activity. Comes complete with a soft pouch, neck strap and lens cloth. Magnification: 8xLens Size: 26mmPrism Type: BAK-4Lens Coating: Fully Multi-CoatedField of view: 330 feet at 1000 yardsWeight: 9.8 oz.Dimensions: 4.5" x 4.25" x 1.5"Accessories: Pouch, neck strap and lens clothTo view all Carson Optical Binoculars available please click here. |
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Alpen APEX 8X32 Waterproof Roof Prism Binocular $281.38 Alpen's APEX binocular family defines the best in optical quality and value. APEX binoculars have a strong composite body for durable yet light weight performance and have Phase and HR metallic coated BaK4 optics to provide a bright, sharp image. Each optical element is also fully multi-coated delivering the brightest image in low light conditions. Long eye relief, twist-lock eye cups and waterproof and fogproof construction provide the best combination of field durability, great optics, and affordabilty. Also included is a durable nylon belt loop carrying case, rubber eye piece rainguard, and soft yet strong neck strap. |
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Meade 127152 715X25 ZOOM 715 X 25Mm Compact Porro Prism Design Binocular $91.13 Travel View by Meade 715 x 25 mm compact porro prism design binocular. 7 to 15 power wit. Manufactured to the Highest Quality Available. Satisfaction Ensured. Great Gift Idea. |
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Bushnell 10x42 AP Trophy XLT Binocular, 234211 $164.99 Bushnell 10x42 AP Trophy XLT Roof Prism Binocular, AP Green 234211 Type: Binoculars |
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Pentax Porro Prism 10X50 XCF Binocular. $97.99 Lightweight and easy to be carried.Super multi-coated lenses and high index porro prism for brighter and clear images.Protection against UV rays.Suitable for outdoors use.Optical zoom.Centre focusing.Porro prism.Fully multi-coated.Lens diameter 50mm.10 x magnification.10 x maximum magnification.Fold down rubber eye cups.Rubber body.Included accessories: eyepiece cover, carrying strap and carrying case.Weight 870g.Manufacturer's lifetime guarantee.EAN/Barcode 2000136150813.Free delivery by post. This item will be delivered free, by post, usually in 5 working days (depending on your local postal service). |
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Pentax Porro Prism 12X50 XCF Binocular. $118.99 Super multi-coated lenses and prism for brighter and clear images.Sliding eye-cups and long eye-relief for comfortable viewing even during long period of observation.Suitable for outdoors use.Centre focusing.Dioptre adjustment.Porro prism.BAK prism.Fully multi-coated.Lens diameter 50mm.12 x magnification.12 x maximum magnification.Fold down rubber eye cups.Rubber body.Waterproof.Tripod adaptor.Included accessories: eyepiece cover, carrying strap and carrying case.Weight 870g.Manufacturer's lifetime guarantee.EAN/Barcode 2000136151117.Free delivery by post. This item will be delivered free, by post, usually in 5 working days (depending on your local postal service). |
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MiniScout™ 7 x 18 mm Compact Porro Prism Binocular $34.95 Carson’s MiniScoutTM is a 7x18mm ultra-compact binocular that is so portable you can bring it with you anywhere. It has a center focus knob with an independent right diopter adjustment for maximum focusing flexibility. The perfect companion for sporting events, concerts and all outdoor activities.Model: JD-718Magnification: 7x powerObjective Lens Diameter: 18 mmMinimum Focusing Distance: 8.2 feetPrism Type: BK-7 porroField of View: 392 feet at 1,000 yardsWeight: 4.5 ounces / 128 gramsAccessories: Pouch Case and Strap |
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Scout™ 8 x 22 mm Compact Porro Prism Binocular $43.95 Carson’s ScoutTM is an 8x22mm compact binocular that provides superior optical quality while maintaining a compact, portable size. It has a center focus knob with an independent right diopter adjustment for maximum focusing flexibility. The perfect companion for sporting events, concerts and all outdoor activities.Model: JD-822Magnification: 8x powerObjective Lens Diameter: 22 mmMinimum Focusing Distance: 6.6 feetPrism Type: BK-7 porroField of View: 408 feet at 1,000 yardsWeight: 6 ounces / 171 gramsAccessories: Pouch Case and Strap |
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ScoutPlus™ 10 x 25 mm Compact Porro Prism Binocular $49.09 Carson’s ScoutPlusTM is a 10x25mm compact binocular that provides superior optical quality while maintaining a compact, portable size. It has a center focus knob with an independent right diopter adjustment for maximum focusing flexibility. The perfect companion for sporting events, concerts and all outdoor activities.Model: JD-025Magnification: 10x powerObjective Lens Diameter: 25 mmMinimum Focusing Distance: 16 feetPrism Type: BK-7 porroField of View: 342 feet at 1,000 yardsWeight: 9.9 ounces / 281 gramsAccessories: Pouch Case and Strap |
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Trek™ 8 x 21 mm Compact Roof Prism Binocular $26.5 Carson’s TrekTM is a value-packed, mini-compact binocular with fully multi-coated lenses that reduce internal glare, reflection, and assure crisp, bright images. It has a center focus knob with an independent right diopter adjustment for maximum focusing flexibility. Lens barrels fold-in to create an extremely compact profile.Magnification: 8 powerObjective Lens Diameter: 21 mmMinimum Focusing Distance: 15 feetPrism Type: BK-7 roofField of View: 365 feet at 1,000 yardsWeight: 7 ounces / 175 gramsAccessories: Pouch Case and Strap |
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Brunton ECHO1042-CAMO10 x 42 Binocular $160.99 1.44 lb 10x 16 mm 315 ft 315 ft @ 1000 yard 4.30 mm 42 mm 5 Year 5.70" x 5" x 2.20" 6° Real ECHO1042-CAMO10 x 42 Binocular Lens Covers Neck Strap Carrying Case Brunton Echo Full Size 10x42 Binocular is entry-level binocular that impresses the experienced. Brunton Echo 10x42mm Full Size Binocular delivers features never before imagined on a sporting binocular. Brunton Echo 10 x 42 Fullsize Binocular is built around Bak-4 prism glass with Brunton 's famous Emerald Fire full multi-coatings. Brunton Echo Full-Size 10x42 Binocular also offers twist-up eye relief system for eyeglass compatibility and more comfortable viewing. Armored Binocular Brunton Brunton, Inc ECHO1042-CAMO ECHO1042-CAMO10 x 42 Binocular Echo F-ECHO1042-CAMO Fogproof Roof - BaK4 Waterproof www.brunton.com |
