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How to Take Flat Frames for Astrophotography [The Easy …
- https://astrobackyard.com/how-to-take-flat-frames/
- As seen in the photo below, pointing the telescope straight up will help you balance the lightbox and keep it flat against the objective. Using a tracing …
Taking Twilight Sky Flats - Bowling Green State University
- https://physics.bgsu.edu/~layden/ASTRO/OBSERVATORY/obs_instr_skyflats.htm
- When to Start Taking Sky Flats This depends on whether you are taking dawn or dusk sky flats, and what filters you are using. Dusk Sky Flats: U:15 minutes after sunset. B: 33 minutes after sunset. V: 35 minutes after sunset. R: 34 minutes after sunset. I: 36 minutes after sunset. Dawn Sky Flats: U: ?? minutes after Astronomical Twilight.
Starry, Starry Night: Astrophotography on the Flats
- https://naturephotodigest.com/starry-night-astrophotography-flats/
- Shot at the world’s largest salt flat, located in Bolivia, Kordan captures the Milky Way and all the twinkling reflections on the mineral-laden surface. Incredible beauty of Altiplano night. I’m standing myself in the middle of the biggest salar in the world, Uyuni. That’s a panorama of 4 vertical shots made on Nikon D810a + 14-24 nikkor.
Fantastic Flat Frames - AstroFarsography
- https://astrofarsography.com/flat-frames
- Flat Frames are a special type of calibration frame that are used to correct vignetting, gradients and dust in your astrophotography. In essence, a flat frame is a evenly illuminated photo of a blank light source.
Guide To Calibration Frames - Lights, Darks, Flats, …
- https://nightskypix.com/calibration-frames/
- Flat frames are used to cure issues in your setup that can alter the uniformity in the brightness of your scene. These can be vignetting from using a filter or a photographic lens wide open, or dirt and dust specks in your optical train. Flat frames do not eliminate light gradients from light pollution. Dark Flat Frames A typical dark flat frame.
How to Make a Flat Frame Lightbox for Astrophotography?
- https://starrynova.com/astrophotography-flat-frames-light-box/
- What You Need to Make an Astrophotography Flat Frame Light Box. Steps to Making a Light Box. Step 1: Take Measurements. Step 2: Create a Box Structure. Step 3: Add Lights to the Box Structure. Step 4: Add the Translucent Sheet. Step 5: Attach the Flat Frame Lightbox. Conclusion.
Dark Flats? - Beginning Deep Sky Imaging - Cloudy Nights
- https://www.cloudynights.com/topic/748991-dark-flats/
- Dark Flats? - posted in Beginning Deep Sky Imaging: Good day, everybody! Being that I am still just getting my feet wet in astrophotography, I had a quick question about Dark Flat calibration frames. I see a lot of folks saying its not necessary to take them as long as you have Bias Cal. Frames, but I also saw some people say that the Dark Flats were better for an ASI …
How to build a flat field box for astro imaging - BBC Sky …
- https://www.skyatnightmagazine.com/advice/build-a-flat-field-box/
- Twilight flat fields can work well, provided the sky is uniform just after sunset. But you need to wait until the Sun is about 5˚ below the horizon before taking the image. If the Sun’s too high, the light sky will overexpose your CCD; if it’s too low, bright stars will appear out of the twilight background.
How to take flats? - Beginning Deep Sky Imaging - Cloudy Nights
- https://www.cloudynights.com/topic/477250-how-to-take-flats/
- Posted 28 September 2014 - 10:09 AM. Andrew, There are a lot of ways to take flat data, but the t-shirt method is among the most simple. Stretch a clean, white t-shirt over the end of your telescope. Bungie cords or rubber bands make the process easy. Just, make sure that there are no wrinkles or seams in the way.
Should My Flats Look Like This? - AstroBin
- https://www.astrobin.com/forum/c/astrophotography/equipment/should-my-flats-look-like-this/
- However, then I take flats I get a circular image with two sides truncated. It is almost like a physical clipping of some sort, or the optics are not fully illuminating the sensor. Attached are a few .jpgs to illustrate. The set-up: 1) Spike A Flat 12" panel about 6" ahead of the scope 2) Tele Vue NP101is refractor 3) ZWO OAG 4) ZWO EFW (36mm ...
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