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Astrophotography
- Resolution in arc-seconds per pixel
- An arc second is a unit of measurement of the sky, and is equal to 1/360th of 1 degree.
- Arc-seconds per pixel = Pixel size (microns) x Focal Length/206.265
- Guiding (manual movement of camera) and Seeing (atmospheric movement of light)
- FWHM
- Dawes Limit - Formula for the maximum resolving power of a telescope
- R = 11.6/D | D is the aperture of main lens in cm | R is the Resolving power of the instrument.
- R = 4.56/D | D is the aperture of main lens in inches
- Understanding Resolution: The Dawes Limit, Rayleigh criterion and Airy discs
- Taking good photos