Telescope Eyepiece Lens
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Celestron 44102 400x Power Laboratory Biological Microscope
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DescriptionCelestron 400X Laboratory Biological Microscope. For entry - level microscopes, it's in a class of its own! Reveal the magic in everyday objects! The texture of each rock, the fragile wings of an insect, or the veins of a leaf... all magnified in magnificent detail. You open your child up to a whole new intriguing world from the moment they open the box. Dollar-for-dollar, it might be the best entry-level Scope available. Where cheap-o beginner microscopes typically utilize plastic components and flimsy construction, Celestron®'s 400X Microscope is precision made with metal components, and includes a condenser and diaphragm, which beginner scopes rarely include. And it's amazingly powerful, up to 400X to reveal details you never knew existed. For performance and quality on a tight budget, Celestron is at the head of the class! Details: 40X / 100X / 400X magnification; 10X eyepiece, with 4X, 10X and 40X objective lenses; Precision all-metal body; Fully coated optics for top clarity, contrast and brightness; Microscope head: monocular, adjustable 0-60 degrees; Includes 5 prepared slides: intestine, honey bee mouth parts, corn stem, year tilia stem, and winter jasmine leaf; 50 mm (2") mirror illumination for extra-bright image picture; Condenser and 5-disc diaphragm built-in; Coarse and fine focus knobs; Eyepiece F.O.V.: 12 degrees; Stage: Plain, 110 mm x 120 mm; Weighs 5 lbs. Order yours today! Celestron Laboratory Biological Microscope Features
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Barlow Lens or new eyepiece?
I brought a Celestron Astromaster 130EQ (focal length 650mm) a few months ago. I decided on this due to the very good ratings about it being a very good value for money begginners telescope. So far I am impressed with it.
The telescope came with two eyepieces (20mm and 10mm). I have recently been observing Venus and Saturn and would like to get a closer look.
I am wondering whether it is best to buy a Barlow Lens to increase the magnification(and if so which barlow lens do you recommend), or whether to buy new eyepiece such as the Celestron X-Cel series which apparently are good for planetary viewing(about £60).
Any help would be much appreciated.
I'd go with another eyepiece.
In the old days, barlows made more sense because they allowed you to get higher power without losing eye relief. But they add more air to glass surfaces to scatter light (and reduce contrast) and more surfaces to collect dust.
The TMB Planetary line of eyepieces offers a variety of focal lengths between 2.5 and 9mm with about 16mm of eye relief. They're reasonably priced, have a wider than normal field of view, and they perform well. I use them as my "every day" and public outreach eyepieces.
Normally, when you're starting out, it makes sense to space your magnification by a factor of 2. So if you have a 20 and a 10, it might make sense to go for something around a 5mm as your next choice.
That would give you 130 power. At that magnification you'll be able to see reasonable details on Saturn and Jupiter, and magnification won't be high enough that seeing conditions will become a major problem.
If your area usually has good seeing conditions you might go for a 4mm instead.
You might try to find a local astronomical society, and join it. The members there will be able to give you great advice, and odds are incredible they'd be happy to let you try some of their eyepieces so you can get a handle on what focal length you'd get the most use out of.
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 Ultra Wide Multi Coated 6mm Eyepiece Lens for Telescope  US $38.89
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Carson MM-200 Carson Micromax LED 60X-100X LED Lighted Pocket Microscope
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DescriptionCARSON MM-200 MICROMAX LEDTM 60X-100X POCKET MICROSCOPE Lightweight and portable, the Carson MM-200 MicroMax pocket microscope is ideal for on-the-go science. The MicroMax offers a powerful 60 to 100x magnification range, making it easy to examine blood samples, bugs, and anything else that's worthy of a closer look. The microscope also includes a built-in LED light that provides a bright, clear image, along with a rubberized eyepiece for comfortable viewing. Best of all, the MicroMax fits conveniently in a jacket pocket, so you can bring it along wherever you go--whether it's a school field trip or a visit to a friend's house. Specifications Magnification: 60 to 100x Batteries: 3 SG3 button cell (included) Dimensions: 1.25 by 3.25 by 0.75 inches (W x H x D) Weight: 1.1 ounces Features
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Tasco Essentials 8x21 Binocular (Black)
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DescriptionUltra-light binoculars offer outstanding compact performance with rugged, rubber armor ideal for hiking, backpacking or bicycling. Features fully coated optics for brightness, 8X magnification with 21mm objective lens, rubber fold-down eyecups for eye relief. Designed to fold down into itself to become even more compact. Includes carrying case. Limited lifetime warranty. Features
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Celestron 21024 FirstScope Telescope
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DescriptionIn 1609, world-renowned Italian scientist, Galileo Galilei, introduced an elementary telescope to the growing astronomy community, which sparked interest into the mysterious night sky for centuries to come. Four centuries later, in celebration of the International Year of Astronomy 2009, Celestron offers the portable FirstScope Telescope. The FirstScope pays tribute to Galileo Galilei and many of history's most notable astronomers and scientists by displaying their names around the optical tube. Honoring the contributions of these men and women, who brought us one step closer to understanding the universe around us. The FirstScope is a wonderful keepsake for anyone interested in astronomy. This quality Dobsonian style telescope features a 76mm aperture reflector optical tube. FirstScope is an ideal entry-level astronomical telescope. It is very easy to observe with; you simply navigate the night sky by moving the tube in the direction of the desired object, making the viewing experience a snap! The compact design makes it easy enough to take with you on your next outdoor adventure. FirstScope is also stylish enough to be a decorative fixture on your bookshelf or desk. Features
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Celestron 44102 400x Power Laboratory Biological Microscope
List Price: |
DescriptionCelestron 400X Laboratory Biological Microscope. For entry - level microscopes, it's in a class of its own! Reveal the magic in everyday objects! The texture of each rock, the fragile wings of an insect, or the veins of a leaf... all magnified in magnificent detail. You open your child up to a whole new intriguing world from the moment they open the box. Dollar-for-dollar, it might be the best entry-level Scope available. Where cheap-o beginner microscopes typically utilize plastic components and flimsy construction, Celestron®'s 400X Microscope is precision made with metal components, and includes a condenser and diaphragm, which beginner scopes rarely include. And it's amazingly powerful, up to 400X to reveal details you never knew existed. For performance and quality on a tight budget, Celestron is at the head of the class! Details: 40X / 100X / 400X magnification; 10X eyepiece, with 4X, 10X and 40X objective lenses; Precision all-metal body; Fully coated optics for top clarity, contrast and brightness; Microscope head: monocular, adjustable 0-60 degrees; Includes 5 prepared slides: intestine, honey bee mouth parts, corn stem, year tilia stem, and winter jasmine leaf; 50 mm (2") mirror illumination for extra-bright image picture; Condenser and 5-disc diaphragm built-in; Coarse and fine focus knobs; Eyepiece F.O.V.: 12 degrees; Stage: Plain, 110 mm x 120 mm; Weighs 5 lbs. Order yours today! Celestron Laboratory Biological Microscope Features
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Orion Observer 70mm Altazimuth Refractor Telescope
Sale Price: $139.99 |
DescriptionOur Observer 70 is the perfect telescope for that budding astronomer in your family. This scope excels in both quality and performance. Its 70mm multi-coated achromatic objective lens - focal length 700mm focal length (f/10) - gathers 36% more light than a 60mm. And it's made of glass, not plastic, as you'd find in many department store models. The optical tube is supported on a sturdy aluminum tripod with accessory tray. This altazimuth model can also be used for terrestrial viewing. Standard accessories include a 10mm (70x) Explorer II eyepiece, a 25mm (28x) Explorer II eyepiece, 90-deg mirror star diagonal, and an EZ Finder II finder scope. One-year limited warranty. Features
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Bushnell Telescope Camera T-Adapter 1.25 inch
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DescriptionConnect your 35mm SLR Camera to any reflector or refractor telescope with a 1 1/4" accessory mount using this camera adapter. Turn your scope into a long lens for some real exciting close-ups! A T-Mount is required to connect your camera to this adapter |
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Nikon 7216 Action 8x40mm Binoculars
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DescriptionNew Nikon 7216 8X40 Action Birding Binoculars W/Case.Includes deluxe case, strap, instructions, and box..Aspherical eyepiece lenses with multi-coated prisms Quick central focus system 420-foot field of view at 1,000 yards Magnification: 8x Objective lens: 40mmLike the Actions with 50mm objective lenses, the 8x40 and 7x35 models in this ever-popular series have been updated with enhanced and ergonomic styling and a lower price structure. They also feature aspherical eyepiece lenses with multi-coated prisms and a quick central focus system so that there is never a delay in observation. With a field of view of over 420? at 1,000 yards, these particular models of the Action Series are a true "wide-view" binocular. For the discriminating and value-conscious outdoorsman, there is no finer binocular than the Action. Features
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BARSKA 40070 Starwatcher Compact Refractor Telescope with Table Top Tripod And Carrying Case
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DescriptionAn ideal entry-level telescope for amateur astronomers, the Barska Starwatcher 300-power telescope brings you closer than ever to the stars and planets. The refractor telescope is equipped with such features as coated glass optics for enhanced image brightness, interchangeable eyepieces with 3x Barlow lenses for increased viewing power, and smooth-functioning mounts. For good measure, Barska added a beginner's version of the highly popular Deepsky Astronomy software, which is packed with a searchable database of more than 10,000 objects, including nebulae, star clusters, double stars, variable stars, and other types. Simply load it on your PC and begin your journey to the stars and planets. Bundled with a sturdy adjustable tripod and a soft carrying case, the telescope carries Barska's limited lifetime warranty. Specifications Max power: 300x Focal length: 400mm Finder scope: 5x24 Draw tube: 1.25 inches Eyepiece 1: SR4 Eyepiece 2: K20 Diagonal: 45 degrees Warranty: Limited lifetime About Barska Barska is a worldwide sport optics company with strong brand recognition within the optics industry, with corporate offices in La Verne, California, and warehouses and distribution centers in La Verne and Shanghai, China. Barska offers an extensive line of precision sport optics products, such as binoculars, riflescopes, spotting scopes, and telescopes. The product range has been designed and built with the latest optical technology, allowing users to enjoy all their favorite leisure time outdoor activities, including bird watching, outdoor observation, hunting, fishing, stargazing, concerts, and sporting events. The Barska 40070 Starwatcher Compact Refractor Telescope with Table Top Tripod and Carrying Case is an ideal telescope for the aspiring amateur astronomer. Ideal for students or those interested in learning more about the night sky, the 70mm objective lens can zoom up to 300x power. Use one of the interchangeable eyepieces with a 3x power Barlow lens for increased viewing capability. A pan-head mount and tripod is included with the telescope along with a handy carrying case. Take this portable telescope outdoors at night and the stars will open up before your eyes. Barska 300x Starwatcher Refractor Telescope for aspiring astronomers... SAVINGS PRICED! Everything you need to get your start in astronomy! The Barska 300x Starwatcher Refractor Telescope is as powerful as it is easy to set up and includes everything necessary to begin the adventure of a lifetime including telescope, finderscope, eyepieces, mount and tripod. You also get the new beginner's version of the highly popular Deepsky Astronomy Software featuring a searchable database of over 10,000+ objects including, nebulae, star clusters, double stars, variable stars, and other types. Here's the full details: Big, light-gathering 70 mm objective lens; All glass coated optics for enhanced image brightness; Maximum magnification: 300x; Focal length 400 mm; 1.5x, 45 degree diagonal erecting eye for easy use; Interchangeable SR4 and K20 eyepieces with a 3x Barlow lens to increase viewing power; Rack and pinion focuser for sharp imaging; 5 x 24 finder scope makes targeting objects easy; Engineered with smooth functioning mounts; Sturdy tabletop tripod; Includes Beginner's Edition Deepsky Astronomy Software. with a searchable database of over 10,000+ objects including, nebulae, star clusters, double stars, variable stars, and other types... Simply load it on to your PC and begin your journey to the stars and planets! Approx 4 1/2 lbs.; Reach for the stars! Order Today! Barska 40070 300x Starwatcher Refractor Telescope Features
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