Astrotreff. Astrotreff 2019-11-11

Astrotreff Rating: 5,1/10 1921 reviews

An amateur binocular maker's Web site

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The inclusion of an off-site link does not imply an endorsement of the website by the Springfield Telescope Makers, and we are not responsible for the content, accuracy, completeness, or any opinions expressed on these linked sites. What Cameras support Live Stacking? We enjoy traveling to star parties up and down the west coast, Texas and Australia. Dress accordingly to keep your experience enjoyable, and bring snacks and coffee to make sure you stay awake! A fine diamond pattern is knurled into the drive rollers to prevent any slippage. Color displacement, or chromostereopsis, makes some things appear in front of others because of their color. Most of the 30 panels have overlap with more than 10 other frames, making this an extremely difficult situation to get perfect registration for all frames.

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Courses in Astrophotography

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How do I use Live Stacking? This both simplifies construction of both the mount and the cells, stiffens the mount, and matches the six-strut tube structure. Round light baffles cut from 0. When not involved in new telescope projects, I try to follow the computing evolution. And at the bottom, you can find Ursa Major. Before I added these adjustments, I couldn't be sure that these two axes coincided. Live Stack Controls In addition to being able to stretcht the histogram to brighten faint objects there are a variety of controls that can be adjusted to control the stacking process. Only when we are using our eyes in the dark and looking at very dim objects, perhaps only slightly above the threshold of detection, will we benefit from binocular summation.

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Westhavelland (Germany)

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During an appointment with my ophthalmologist, he tested both eyes, first independently and then together. This will greatly improve data normalization in the complete stack before actual data integration. Although these color and displacement effects are artificial — produced by the brain trying to get depth from the images — they are very pleasing. In spite of this, binocular builders insist they're worth the effort. If you doubt this, try using the chart on the left with one eye and then two eyes. Separate co-pointing adjustments, used to make the optical axes of both telescopes parallel, are also located on the same threaded rods.

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A similar machine cut the binocular's C-rings. I don't think I've ever seen so much color in an object. The physiological and neural aspects of binocular vision have been studied for centuries, and much is known about how eyes work together. This map uses infrared satellite telemetry to calculate the temperature of the clouds. This sounds like an ambitious goal.

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Astronomers Do It In The Dark

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Co-pointing is achieved by raising or lowering the nuts until the separate images from each side can be visually fused. When you make metal telescopes using these fabrication methods, you have more design flexibility, but your costs are higher. This eliminates lateral supports, like slings or clips, and simplifies design. A soft rubber trim is wrapped around the cap's edge to avoid mirror damage and prevent dust from accumulating on the mirror. See how many you can spot by going birdwatching during the day, and be sure not to miss the rare bustard, who live in a separate reserve. They all believe that a binocular enhances viewing, based on their experiences or anecdotal evidence from others. To facilitate manual slewing, I included adjustable slip couplings, or clutches, by in the drive train.

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eVscope

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The baffles are made from vinyl-coated artists foam board. SkySafari planetarium app Once the SkySafari app is connected to the digital setting circles and is aligned with two objects, it shows the binocular's reported position with a planetarium display of surrounding objects. Thus, co-pointing the binocular won't affect collimation of either side. Setup takes about a half-hour. So ein Au Ist unsere Erde der einzige bewohnte Planet im Universum? T-nuts slide into slots in the profile; these nuts are used with screws and fasteners to combine various parts and build frame structures. As I push the binocular around the sky, SkySafari follows its position by moving the bulls eye against the display.

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Direct, friction-roller drives move the telescope in each axis. But stars are also forming within the dark shapes. The upper part of the assembly contains the altitude bearings and houses the digital setting circle components. The normalization maps shows the dispersion of all pixel stacks in the integration. With a binoviewer, the light is split equally between both eyepieces, so summation at best only restores part of the light-gathering power of the monocular's aperture. My Tele Vue 22mm Nagler is 58mm across, and the exit pupils in a pair would be too far apart for about 8% of the population see the ch art to the left.

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Astronomers Do It In The Dark

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A QuikFinder red dot sight is mounted on the top end. The arrowheads point in the same direction as the wind. Move the pointer over the thumbnail and hold it until a caption is displayed, then select to see the larger image. Please if you would like your club listed. Westhavelland Nature Park is the largest protected area in the German federal state of Brandenburg and comprises the largest contiguous wetland of any individual European country. Light loss of 5% by the binoviewer my assumption would further reduce this to about a 28. The time from sunrise to sunset is indicated in light yellow.

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Fantastic, dark shapes inhabiting the view are clouds of cool gas and dust sculpted by energetic radiation from young, hot, massive stars. This makes it easy to place the mirror in the laundry sink and wash it down. Completely processed in Astro Pixel Processor. If you live in a city, chances are that your skies are so polluted by the lights that you can barely see any stars. They add virtually no weight to the top end and are moisture-resistant.

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eVscope

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The mounts are triangular instead of the usual square shape. Vision scientists call this process binocular summation. Although there is a small amount of light loss due to the beam splitter, prisms and other lenses perhaps a half magnitude , the benefits of using both eyes outweighs this disadvantage. Studies have shown that binocular sensitivity is well in excess of any gain that would be expected from probability summation, thus supporting the presence of neural summation. Link exchange e-mail is deleted and will not be answered. They are in the light path; a compromise made to avoid a heavier and more complex upper end. Once the Live Stack button is pressed, SharpCap will immediately begin stacking frames and will display the stacked image instead of individual frames.

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