ZEISS FOLDING MAGNIFIERS "JEWELERS LOUPES"
The Zeiss line of folding magnifiers comprises three optical instruments of outstanding quality and value. To decide which one is best for your needs, ask yourself a simple question...
Will you be viewing a wide range of specimens, varying in size, color, and structural detail?
. . . . or . . . .
Will the magnifier be used repeatedly to inspect, compare, and appraise similar types of objects, such as gems, coins, and stamps?
If the subjects you view are diverse - - - if you are studying biological specimens in the field, or antiques at a roadside shop, or jade carvings in a Hong Kong street market, or tiny surface-mount components on a circuit board, you need the versatility afforded by the Zeiss D12+24 dual-lens model. With magnifications of 3x, 6x and 9x, it is one folding loupe that will meet nearly every viewing challenge.
If the subjects you view are consistently similar in size and detail - - - you may prefer a single-lens loupe.
For the professional gemologist, there is no question but that the Zeiss D40 10-power loupe is the standard of the industry, meeting all GIA and CIBJO requirements for grading of fine diamonds. This same 10-power loupe is the preferred tool for the field mineralogist, for the numismatic appraiser, and other professionals whose work involves authentication or appraisal of valuable miniatures. It is also the best choice for inspection of prepress copy, color separations, and lithos of 120 lines per inch or higher.
For viewing and appraisal of stamps and larger coins or medallions, for field comparison of fingerprints, for prepress inspection of lithos and color separations up to 120 lines per inch, the 6-power Zeiss D24 , with its larger field of view (2" or 50mm) is an excellent choice.
Whichever loupe you choose, you'll get a lens system which is specified as "aplanatic" (corrected for spherical aberrations which interfere with sharp focusing) and "achromatic" (corrected for chromatic dispersion, which cause colors to separate and show up as "halos" around bright details). And you'll get the world-class quality for which Zeiss has been famous for more than 150 years.
Will you be viewing a wide range of specimens, varying in size, color, and structural detail?
. . . . or . . . .
Will the magnifier be used repeatedly to inspect, compare, and appraise similar types of objects, such as gems, coins, and stamps?
If the subjects you view are diverse - - - if you are studying biological specimens in the field, or antiques at a roadside shop, or jade carvings in a Hong Kong street market, or tiny surface-mount components on a circuit board, you need the versatility afforded by the Zeiss D12+24 dual-lens model. With magnifications of 3x, 6x and 9x, it is one folding loupe that will meet nearly every viewing challenge.
If the subjects you view are consistently similar in size and detail - - - you may prefer a single-lens loupe.
For the professional gemologist, there is no question but that the Zeiss D40 10-power loupe is the standard of the industry, meeting all GIA and CIBJO requirements for grading of fine diamonds. This same 10-power loupe is the preferred tool for the field mineralogist, for the numismatic appraiser, and other professionals whose work involves authentication or appraisal of valuable miniatures. It is also the best choice for inspection of prepress copy, color separations, and lithos of 120 lines per inch or higher.
For viewing and appraisal of stamps and larger coins or medallions, for field comparison of fingerprints, for prepress inspection of lithos and color separations up to 120 lines per inch, the 6-power Zeiss D24 , with its larger field of view (2" or 50mm) is an excellent choice.
Whichever loupe you choose, you'll get a lens system which is specified as "aplanatic" (corrected for spherical aberrations which interfere with sharp focusing) and "achromatic" (corrected for chromatic dispersion, which cause colors to separate and show up as "halos" around bright details). And you'll get the world-class quality for which Zeiss has been famous for more than 150 years.