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Best Telescope For Astrophotography | Deep Space Photography
- https://nightskypix.com/best-telescope-astrophotography/#:~:text=1%20f%2F9%20or%20greater%20is%20considered%20slow%20and,fast%20ratio%20and%20better%20for%20deep%20sky%20imaging.
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How to Choose the Best Focal Ratio for Astrophotography
- https://starrynova.com/best-focal-ratio-for-astrophotography/
- A long focal ratio gives a narrower field of view and higher magnification with a given eyepiece. This is great for observing the moon, planets, double stars, etc. An ideal focal ratio for this type of object is f/10 or more. If you are interested in capturing wide views of galaxies, star clusters, and the Milky Way, then a low focal ratio is pref…
How Focal Ratio Affects Your Astro Images - Sky
- https://skyandtelescope.org/astronomy-blogs/imaging-foundations-richard-wright/how-focal-ratio-affects-your-astro-images/
- Why Focal Ratio Matters. The tradeoff between aperture and focal length is reflected in the instruments focal ratio. A 200-mm (8-inch) telescope with a 2,000-mm focal length has a focal ratio of f/10. By contrast a 200-mm …
Focal Ratio | Astronomics.com
- https://www.astronomics.com/info-library/astronomical-terms/focal-ratio/
- Fast f/4 to f/5 focal ratios are generally best for lower power wide field observing and deep space photography. Slow f/11 to f/15 focal ratios are usually better suited to higher power lunar, planetary, and binary star observing and high power photography. Medium f/6 to f/10 focal ratios work well with either.
What focal length is best for astrophotography? - Quora
- https://www.quora.com/What-focal-length-is-best-for-astrophotography
- Answered 1 year ago · Author has 3.2K answers and 1.4M answer views. It depends on what you’re taking a picture of. If you’re taking a picture of the Moon you want a zoom lens with a maximum focal length of at least 200 mm, 300 is better and 400 mm or bigger is best. Zoom lens with a maximum focal length of 400 mm or more are incredibly expensive, like 2,000 dollars or …
Astrophotography, Pixel by Pixel: Part 2 - Focal Ratio Effects
- https://cloudbreakoptics.com/blogs/news/astrophotography-pixel-by-pixel-part-2
- While aperture cannot be completely ignored in astrophotography, often what we care about more is the focal ratio of the telescope. The focal ratio is a unitless number, and can be found by dividing the focal length of the telescope by the aperture. For example, if a telescope had 80mm of aperture and a focal length of 500mm, then the focal ratio of the scope would be …
Telescope What Is Focal Ratio? (TOP 5 Tips) - A Guide to …
- https://www.amazingtelescopes.com/recommendations/telescope-what-is-focal-ratio-top-5-tips.html
- What is a good focal ratio for astrophotography? Wide field observation with low power and deep space photography with fast f/4 to f/5 focal ratios are often the greatest applications for these lenses.
6 Best Telescopes for Astrophotography in 2022 - Shotkit
- https://shotkit.com/best-telescope-astrophotography/
- Best Telescope for Astrophotography in 2022. Explore Scientific ED 80 Telescope. See More Reviews. Editor's Choice. Pros. Images have fantastic color and sharpness. Extremely portable. Work with ... Orion ED80T CF. William Optics Zenithstar 61 f/5.9 II. …
maximum focal ratio for planetary imaging - Cloudy Nights
- https://www.cloudynights.com/topic/783665-maximum-focal-ratio-for-planetary-imaging/
- For a given sampling ratio (at a particular wavelength), the maximum focal ratio is then solely dependent on the pixel pitch. Using S = 1/4, the maximum usable focal ratio should then be: f/75.9 <-- 11.6 microns per pixel: 22.3*14.9 mm^2 @ 1920*1080 px (Canon APS-C) f/24.3 <-- 3.72 microns per pixel: 22.3*14.9 mm^2 @ 6000*4000 px (Canon APS-C)
Which long focal lengths make sense for the average astro …
- https://www.astrobin.com/forum/c/astrophotography/equipment/which-long-focal-lengths-make-sense-for-the-average-astro-photographer/
- Bjorn said it very well. If you are happy with your 8inch f/4 Newtonian, I wouldn't go to a longer focal length. With 2.4um pixel (ASI183) you have 0.6arcsec/pix (equal to the diffraction limit at 200mm) and a longer focal length won't hep. Even with 3.7um pixels you have 1arcsec/pix, ideally suited for 2arcsec seeing.
In Astrophotography, Bigger Is Not Always Better! - Sky
- https://skyandtelescope.org/astronomy-blogs/imaging-foundations-richard-wright/astrophotography-bigger-not-better/
- Long focal-length, deep-sky astrophotography (starting around 2,000 mm) is best done from outer space, or when you're well along the challenging learning curve. There are many compact, long-focal-length telescopes on the market for visual observers (think Schmidt-Cassegrains and Maksutov-Cassegrains).
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