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Captain's Brass Spyglass 15"Total Dimensions: 15" L x 2" W x 2" H
The Hampton Nautical Premium Quality 15" Brass Spyglass Telescope is a great gift for a nautical navigator in your family. The spyglass measures 15" when its four brass tubes, which are clear coated to protect the brass from tarnishing, are fully extended. The diameter of the objective lens is 30 mm. The spyglass is 5" when collapsed and features a smooth, solid brass finish. This spyglass also comes with a solid brass cap to protect the lens. Simply adjust the telescope tube length to bring the image into clear focus.
The 15" Spyglass is shipped in a beautiful felt-lined brass-inlaid hardwood case. The box features brass side inlets on all sides and the Hampton Nautical solid brass anchor-with-rope logo on the top. The box is smooth, gloss-finished hardwood measuring 9.5" wide, with a solid brass front clasp.
Custom engraving is available directly on the spyglass, in any placement, with a minimum quantity required. Due to the large width of the engravable area we suggest engraving full names rather than monograms or initials. For custom engraved orders, please contact us.
•Polished brass spyglass body
•15X Magnification
•Glass optics for a clear view (not plastic lenses)
•Fully functional spyglass focuses and magnifies
•Solid rosewood box lined with felt to store spyglass
•Brass anchor emblem inset in face of rosewood box
•Custom engraving available on large quantity orders (call us for information)
Learn More about Captain's Brass Spyglass 15"The basic function of antique brass telescopes is to gather light to create a detailed image. The larger the gathering lens, the more light that is collected, and the more defined the image. From this basic light gathering premise, there are two typical solid brass telescope models. Refracting brass telescopes use a large objective lens to collect and bend light, while the reflecting telescope uses a large concave mirror to achieve this. In the refracting telescope, as the light passes through the glass lens, it is bent inwards at all directions so that at some point in the barrel of the telescope, the focal point, all the points of light converge. As light does not just stop, it continues to spread out again after this point, however, the eyepiece lens gathers this focused light and sends it to your eye. With the primary lens bending light inwards the resulting image appears inverted, though a second set of lenses in the eyepiece right the image before it reaches you. One of the problems with this type of solid brass telescope is that different colors of light have different wavelengths and are bent different amounts by a single lens. The result is that the image can appear blurred or fuzzy around the edges as the light cannot come back into complete focus. Alleviating this issue, the reflecting telescope was invented. In a reflecting solid brass telescope the use of mirrors take the place of glass lenses. A primary mirror is curved at just the right angle to send the light to a tilted secondary mirror, which in turn focuses the light onto the eyepiece.
Delivery 7 to 10 days
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