Orion SkyQuest XT45 Classic Dobsonian Telescope

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Orion SkyQuest XT4.5 Classic Dobsonian Telescope

Orion SkyQuest XT4.5 Classic Dobsonian Telescope
$349.99


Orion Telescopes Binoculars


Now everyone with a curiosity for space can explore its wonders to their hearts' content. With an Orion SkyQuest XT4.5 Classic Dobsonian reflector telescope stargazing is easy and fun for the whole family. Its portable size, innovative design, and point-and-view simplicity make it an extremely user-friendly telescope for beginners and intermediate stargazers alike. The Orion SkyQuest XT4.5 Classic Dobsonian's Newtonian reflector tube assembly features a big 4.5" (114mm) diameter light-gathering





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How To Make A Kaleidoscope


More Choices in Binoculars - Compact, But Not Too Compact

The bigger the exit pupil, the more light you'll get through the glass. But your eye can dilate to only about 7mm in total darkness (that's why binoculars built for use on naval vessels and other applications where portability matters not, have 7mm exit pupils: 7x50, 8x56, 10x70).

To see game in dim light or watch songbirds in the shadows, you'll want a 5mm exit pupil, maybe 6. So for a 7x binocular a 35mm objective is about minimum. Want lOx magnification? To get that 5mm exit pupil, you'll need 50mm front glass.

When I'm not toting a rifle, I'll strap on a harness to carry 10x50 Swarovski or Leica binoculars. The higher magnification gives me more detail, and bigger front glass ensures plenty of light transmission in the shadows. When packing a rifle myself, however, I'll leave these 42 ounce glasses at home. The hills aren't getting any easier to climb. A 50mm binocular all but mandates a harness to transfer the weight from your neck to your shoulders. Harnesses make that weight bearable, but they're annoying when you want to shed or put on a jacket. You must extricate yourself from the straps and set the binocular down. Then, when you're finished adjusting your outerwear, the harness must go back on. Even if the weight and inconvenience don't nettle you, the bulk of a 50mm binocular may. It's not a glass to slip easily into your shirt, and most models are long enough that you'll notice them banging against your rifle.

To be honest, I'm getting perilously close to liking little binoculars. They fit in a big jacket pocket and ride under a jacket front with hardly a bulge. They don't require a harness.

For all their advantages - and a proliferation of the type during the last two decades pocket-size binoculars have become something of a counter-culture in the hunting community. Binocular companies these days hawk image brightness as if all game were shot in the dark. Bigger...

... .more

How To Use Binoculars
How To Use Binoculars
How Do You Setup A Binocular
How Do You Setup A Binocular
Understanding Binoculars Fit And Focus
Understanding Binoculars Fit And Focus
How To Make A Kaleidoscope
How To Make A Kaleidoscope




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