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Long Exposure Astrophotography [Get A Drive Motor] - Kevin Francis
- https://kevinrfrancis.com/2019/10/long-exposure-astrophotography-get-a-drive-motor/#:~:text=The%20500%20Rule%20in%20Long%20Exposure%20Astrophotography%20The,photo%20without%20creating%20star%20trails%20in%20the%20photo.
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Long-Exposure Astrophotography
- https://www.naturescapes.net/articles/techniques/long-exposure-astrophotography/
- While processing is perhaps one of the most important steps in any photography, in astrophotography it can safely be claimed that it is the single-most important step. You can take the best series of images possible, but have an unacceptable final ima…
How Astrophotographers Shoot (Very) Long Exposures
- https://fstoppers.com/astrophotography/how-astrophotographers-shoot-very-long-exposures-568277
- If you’ve viewed deep-sky astrophotos (not landscape astrophotos), you may have noticed that extremely long exposures (not counting mosaics) are used. In extreme cases, exposures may run over 12...
Long Exposure Astrophotography [Get A Drive Motor]
- https://kevinrfrancis.com/2019/10/long-exposure-astrophotography-get-a-drive-motor/
- Long exposure astrophotography began in 1880 when Henry Draper took a 51 minute exposure of the Great Orion Nebula. He used a tracking mount to take this photo. The German Equatorial Mount is a popular choice and it was first used in 1824. The creation of Joseph von Fraunhofer for the Great Dorpat Refractor.
Astrophotography and Exposure, Clarkvision.com
- https://clarkvision.com/articles/astrophotography.and.exposure/
- One does not need a telescope to do a lot of astrophotography. Keys are fast lenses to collect a lot of light and a dark site away from cities. Exposure in terms of light from the subject is the product of lens aperture area times exposure time. Exposure can be further refined by including angular area.
Astrophotography: How Long Can You Go? - Sky
- https://skyandtelescope.org/astronomy-blogs/imaging-foundations-richard-wright/astrophotography-rule-of-500-how-long/
- You can use the "rule of 500" to determine how long your camera can expose before stars begin trailing. But in reality, how long you can expose depends on your focal length, pixel size, and where you are pointing in the sky. Richard S. Wright Jr. Rule of 500 (or 300) If you've never heard of the Rule of 500, it's quite simple.
Long Exposure Vs Image Stacking For Astrophotography
- https://nightskypix.com/astrophotography-stacking-vs-long-exposure/
- Long exposures and image stacking are different techniques that serve different purposes. If you are doing astrophotography, you will need to combine the needs for collecting enough signal from the sky with long enough exposure and the needs to reduce the captured noise and boost details with image stacking.
Astrophotography for beginners & shooting it on a DSLR
- https://www.adobe.com/creativecloud/photography/discover/astrophotography.html
- Light paintings are long exposures that cause points of light to blur and travel, creating interesting photographs that are scribbled with light. Many astrophotographers use this method to capture the rotation of the Earth through the movement of the points of light of the stars.
Long Exposure and Astro-Photography Using Raspberry Pi
- https://www.instructables.com/Long-Exposure-and-Astro-Photography-Using-Raspberr/
- Astrophotography is the photography of astronomical objects, celestial events, and areas of the night sky. Apart from recording the details of the Moon, Sun, and other planets, astrophotography has the ability to capture objects invisible to the human eye such as dim stars, nebulae, and galaxies. This fascinated us because the results obtained are breathtaking and can be …
Longer exposures versus multiple shorter exposures
- http://dslr-astrophotography.com/long-exposures-multiple-shorter-exposures/
- Let’s look at the same minute marks as before: using 3.5 minutes exposures compared to 30sec exposures gives you an SNR improvement of 26.3%. Going from 3.5 minutes to 8 minutes gives you a further improvement of 2.86%. So even though we still see strong diminishing returns, the improvements remain significant up till longer exposures as before.
More short exposures or fewer long exposures
- https://www.amateurastrophotography.com/more-short-exposures-or-fewer-long-exposures-which-is-better/
- As the signal is increased with longer exposure times, the noise will increase to the value of the square root of the signal. In other words, if the exposure signal increases by 100 times, the noise would increase by 10 times – the square root of the signal increase (giving an increase of 10% noise).
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