TELESCOPES and BINOCULARS USED ON LAND AND SEA Telescopes, Binoculars, Spotting Scopes, Microscopes, Riflescopes, Astronomical Accessories,Refractor,Reflector,Monoculars,Night Vision,Cassegrain,GPS,Optical Tubes,Digital Camera,Eyepiece,Filters,Barlow,Lenses,Diagonals,Prisms,Tripods,Mounts,Finder Scopes,BinoViewers,Optics,Astronomy,Astrophotography,Laser Range Finders,Rangefinders, Special Offer
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TELESCOPES & BINOCULARS USED ON LAND AND SEA

  Scope City's Optics Crash Course
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SECTION 1: SCOPE CITY`S GUIDE TO OPTICS

PART I: BASIC APPLICATIONS OF OPTICS

A. TELESCOPES & BINOCULARS FOR DAYTIME USE:

TELESCOPES & BINOCULARS USED ON LAND AND SEA

The most popular optical instruments used for this purpose are binoculars. Magnifying 6 to 12 times, they are relatively unaffected by atmospheric conditions, and they are a very cost-effective way of providing nearly instant access to views of land and sea objects. Some of the better binoculars provide images so clear they seem to "disappear" from the view.

One of the best types of telescopes for this purpose is the small refractor. It can be in a Spotting scope format (marvelous for sharp, contrasty, views of land features, boats, and people watching) or an astronomical refractor telescope format (which can be used on the sky at night as well as daytime objects).

One of the issues for any telescope, when used on land or sea, is that its image is not usually correctly oriented for daytime viewing. The image can be completely upside down and backwards, or just simply reversed left to right. Fortunately, spotting scopes have built-in image correctors, and astronomical refractors can have their images corrected by the simple addition of a correct-image diagonal. Astronomical telescopes composed of mirrors and lenses, usually referred to as compound telescopes, also can all have their images so corrected. Only the classic Newtonian reflectors cannot easily be corrected for use on land. In general, telescopes make powerful tools for daytime viewing on land or sea.

A telescope provides a magnified image of the object being viewed, and the magnification is caused by the interaction of eyepiece and focal length of the scope. Zoom eyepieces provide many different magnifications without changing eyepieces, or one can used fixed-power eyepieces to produce the image. Either way, daytime magnifications are usually confined to under 75 times (75X) because of turbulence in the air itself. When you magnify, you magnify everything - the image and the heat waves and distortion of the atmosphere. Because the sun is constantly heating up the air and the winds blow many different directions near the Earth's surface, any view through a telescope of a land or sea object will be a compromise between the atmosphere and the magnification used. The most pleasing views are usually found at 20X to 30X, with the higher powers reserved for those "just right" conditions.

We can successfully hand-hold an image still up to about 10X or 12X (typically where binoculars leave off). If higher powers are to be used, it will be necessary to use a mount of some sort. Fortunately, some very stable, high-quality, mounts can be had for very affordable prices. Whether using a high-power binocular, spotting scope, or astronomical telescope, the experts at Scope City will steer you to the right combination of products to make your viewing enjoyable.

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LAND, SEA AND NATURE BINOCULARS

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Kowa SV 10x32 Roof Prism Waterproof Binocular
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Kowa SV 10x32 Roof Prism Waterproof Binocular
Item No. 468-22030
Manuf. No. Kowa SV32-10

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Kowa SV 8x32 Roof Prism Waterproof Binocular
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Item No. 468-22020
Manuf. No. Kowa SV32-8

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Kowa YF 8x30 Porro Prism Waterproof Binocular
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Manuf. No. Kowa YF30-8

Kowa YF30-8 Binocular, Waterproof YF 8x30 Porro Prism
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Kowa YF 6x30 Porro Prism Waterproof Binocular
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Manuf. No. Kowa YF30-6

Kowa YF30-6 Binocular, Waterproof YF 6x30 Porro Prism
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Swarovski 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58142 with 5.7 Degree Angle of View, Tan Traveler
Swarovski 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58142 with 5.7 Degree Angle of View, Tan Traveler
Item No. 445-03050
Manuf. No. Swarovski 58142

Swarovski 58142 Binocular 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism with 5.7 Degree Angle of View, Tan Traveler
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Swarovski Optik 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58141 with 5.7 Degree Angle of View, Green
Swarovski Optik 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58141 with 5.7 Degree Angle of View, Green
Item No. 445-03040
Manuf. No. Swarovski 58141

Swarovski 58141 Binocular 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism with 5.7 Degree Angle of View, Green
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Swarovski 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58140 with 5.7 Degree Angle of View, Black
Swarovski 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58140 with 5.7 Degree Angle of View, Black
Item No. 445-03030
Manuf. No. Swarovski 58140

Swarovski 58140 Binocular 10x30 CL Companion Waterproof and Fogproof Compact Roof Prism with 5.7 Degree Angle of View, Black
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Swarovski 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58132 with 7.1 Angle of View, Tan Traveler
Swarovski 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58132 with 7.1 Angle of View, Tan Traveler
Item No. 445-03020
Manuf. No. Swarovski 58132

Swarovski 58132 Binocular 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism with 7.1 Angle of View, Tan Traveler
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Swarovski 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58131 with 7.1 Angle of View, Green
Swarovski 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism Binocular 58131 with 7.1 Angle of View, Green
Item No. 445-03010
Manuf. No. Swarovski 58131

Swarovski 58131 Binocular, 8x30 CL Companion Waterproof and Fogproof Compact Roof Prism with 7.1 Angle of View, Green
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Swarovski Optik 8x30 CL Companion Waterproof Compact Roof Prism Binocular 58130 with 7.1 Angle of View, Black
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Manuf. No. Swarovski 58130

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Pentax 9x42 DCF BR Waterproof Roof Prism Binocular
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Item No. 430-36500
Manuf. No. Pentax 62598

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Pentax 9x32 DCF BC Binocular 62597, Waterproof, with case
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Vanguard Mariner Waterproof 7x50 Binocular w/compass, yellow
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Vanguard 10x25 Orros Binocular, waterproof and fogproof compact
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Vanguard Compact Waterproof Binocular Orros 8x25
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