漂白
发表于 2025-3-23 11:09:35
Odds and Ends,of materials he had available to him at the time, it was no small feat. When compared to his humble 6-in. f/8 binocular telescope (see Fig. 7.1), one can see little difference in the design of binocular telescopes that the amateurs are making today, at least when it comes to the smaller Newtonian-sized Newtonian binocular telescopes.
进取心
发表于 2025-3-23 17:26:05
1431-9756 iscovery, and new or updated text.Provides basic information.Covering both homemade and commercial products, this book provides the reader with simple and straightforward information about the modeling, building, and use of binoscopes. Binoscopes can be thought of as binoculars enlarged to the size
brassy
发表于 2025-3-23 18:04:41
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Small-Intestine
发表于 2025-3-24 01:38:47
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EWER
发表于 2025-3-24 03:13:53
Equatorial Versus Altazimuth,motor. With an Altazimuth mounting, the ease of use with its two axes (azimuth and altitude) makes it a simple process to maneuver a small or even large telescope manually about the sky for observing. However, when it comes to tracking celestial objects with it, things become a bit more complicated.
Transfusion
发表于 2025-3-24 07:31:04
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认为
发表于 2025-3-24 11:59:35
https://doi.org/10.1007/3-540-32312-0they have to be supported on a large tripod or pier. The view through a pair of 150-mm Fujinon binoculars is stunning to say the least. However, the expense that one has to pay for a pair of these fantastic large Japanese binoculars is often out of reach for the average individual.
WAIL
发表于 2025-3-24 17:21:31
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摘要记录
发表于 2025-3-24 21:35:17
Binoculars Are Binoscopes,they have to be supported on a large tripod or pier. The view through a pair of 150-mm Fujinon binoculars is stunning to say the least. However, the expense that one has to pay for a pair of these fantastic large Japanese binoculars is often out of reach for the average individual.
用树皮
发表于 2025-3-24 23:24:20
Optical Designs,eir focal lengths and actual position measurements in the optical system in either inches or millimeters. You can do this either to scale on the computer or draw it out by hand. Either way, you’ll have an optical schematic accurately shown and drawn to scale on a computer to help you construct your