Field glasses come in a wide range of brands and models that could be rather expensive but if you know where to look, you can always buy cheap used binoculars. How good a bargain you can get will depend on a few considerations.
 Nikon Action Zoom XL 10 22x50 Binocular VGC Barely Used US $86.00 |
 Vintage WWII German E Leitz Wetzlar Dienstglas 7 x 50 serial 254185 M US $250.00 |
 BRAND NEW Swarovski Optik EL 10x42 SV Binocular FREE SHIPPING US $2,025.00 |
 nikon 10x50 used in great shape US $26.00 |
 Bushnell 8x26 H2O Compact Porro Prism Waterproof Fogproof Binocular NEW US $58.97 |
 Vintage Tasco Chrome 8 x 20 Binoculars NoT48138 VERY CLEAN US $34.99 |
 Nikon Realtree Road Trip 10x25 Cameo Binocular US $38.00 |
 Powerful BLUE LENS COATING Nikula Monocular Telescope US $14.29 |
 Powerful Pocket Monocular Telescope Travel Camp Hunting US $10.99 |
 Canon 12x36 IS II Image Stabilized Binocular NEW US $669.00 |
One of these is what you need an optics for. There are several types of field glasses that are intended for different purposes. Broadly, they can be classified into:
• Astronomical
• Birding and Wildlife
• Marine
• Compacts and Opera Glasses
• Sporting, Zoom, and General Purpose
• Night Vision
• Digital Camera
Specialized types such as night vision and digital camera glasses, generally costs more. Brand is also a major issue. Some manufacturers have earned a reputation for producing quality products that they can command premium prices. Also, even within the broad classification mentioned, there are lots of variations in terms of magnification, objective lens diameter, lens coating, exit pupil, prisms, and case material. These will have a bearing on the cost of field glasses, both new and pre-owned.
The Internet is a good place to look for bargains. There are thousands of cheap used binoculars advertised in hundreds of websites. And these come in virtually all brands and types. Amateur astronomers can find glasses with big objective lenses for use in low-light conditions. Birdwatchers and wildlife enthusiasts can browse through a long list of lightweight field glasses with a wide field of view. Pre-owned marine field glasses are also available for fishermen. And for those who like to watch operas or open field concerts, they can also find compacts and opera glasses. Sporting, zoom, and general purpose optics are used in a wide variety of applications. These, too, are an be found on the Internet. Night vision and digital camera optics are also available.
You will need to be patient when browsing the Internet in search for cheap used binoculars. Visit as many websites as you can and study the features of each unit you find. Compare their prices and determine if indeed they are good bargains. The same advice applies when buying used cell phones. This way, you can get yourself pre-owned field glasses that are as good as new.