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Advanced Astrophotography Shutter Time Calculator
- https://www.lonelyspeck.com/advanced-astrophotography-shutter-time-calculator/
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Optimum Exposures Calculator - Gibraltar Astronomical …
- http://www.gibastrosoc.org/sections/astrophotography/optimum-exposures-calculator
- Optimum exposure time is then calculated based on your entered parameters, using Steve Cannistra's mathematical framework. The optimum number of exposures to capture (for later stacking) is calculated based on your entered …
Astrophotography and Exposure, Clarkvision.com
- https://clarkvision.com/articles/astrophotography.and.exposure/
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Formula to Calculate max exposure time. - Cloudy Nights
- https://www.cloudynights.com/topic/709111-formula-to-calculate-max-exposure-time/
- 1. Exposure time will depend on many factors. Darkness of the site. Moon on/off. Gain of the camera, etc. Just take a test shot and look at the histogram. You want the histogram peaks to be in the first half of the range. My exposure times with AT72EDII and ASI294 (Gain 200, offset 20) with a LPro filter vary from 60 to 360 sec for a single frame.
Calculating Correct Exposure for Astrophotography Sub …
- https://www.dpreview.com/forums/thread/4377640
- You can then work out the electrons received from the sky peak in a given exposure time, and compare this with the sensor read noise, which is available for many sensors in the “Input Referred Read Noise” table at Photons to Photos: Andy. Andy, this calculator has no input for a focal length. To calculate photon flux, a FL assumption must ...
Astrophotography: How Long Can You Go? - Sky
- https://skyandtelescope.org/astronomy-blogs/imaging-foundations-richard-wright/astrophotography-rule-of-500-how-long/
- You take the number 500 and divide by the focal length of your lens. For example, if you have a 20-mm wide angle lens, then 500 / 20 = 25. You can shoot for 25 seconds on a tripod before the stars start to streak. Rules of thumb have their place.
Calculating/estimating minimum exposure time per sub: …
- https://www.dpreview.com/forums/thread/4207314
- RudyPohl wrote: rnclark wrote: RudyPohl wrote: HI there, I need some help figuring out what should be my minimum ideal exposure time for my subs so that with 2-3 hours of data I can render the fainter details in the image like dust, nebulosity, faint stars, etc. of DSOs like Orion Nebula, Andromeda Galaxy, Rosette Nebula, etc.
Calculators for Astrophotography
- https://www.astropix.com/html/astrophotography/astrophotography-calculators.html
- Calculator Instructions. Calculators already have sample data in them. Some are examples from my telescope, a C11 SCT with 279.4 mm of aperture and 2,794 mm focal length at f/10. Highlight the numbers already entered in the boxes and delete them and enter your own. For large numbers, do not use commas.
Optimum Subexposure Calculator (and more...) - AstroBin
- https://www.astrobin.com/forum/c/astrophotography/deep-sky/optimum-subexposure-calculator-and-more/
- One key step is that we need to take a test exposure with the specified equipment, to calculate the Background Flux and use it as a reference to give the Optimum Exposure Time for this conditions. Apart of the Optimum Exposure, I added some other calculations that can be useful to plan the astrophotography sessions needed for a given project, for those (as me) that …
Ideal Exposure Calculator — Starizona
- https://starizona.com/blogs/tutorials/ideal-exposure-calculator
- Select your CCD camera from the pull-down menu below. 6. Enter your test exposure time in minutes. 7. Enter the measured sky background value from the test exposure. 8. Select one of the standard choices for the percent contribution of readout noise. 5% is the usual figure used but a higher noise tolerance will give a shorter exposure time. 9.
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