Red Flash
Taken by Maciej Libert on January 26, 2025 @
Fuerteventura
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Camera Used: Canon Canon EOS R6m2
Exposure Time: 1/8000
Aperture: f/40.0
ISO: 100
Date Taken: 2025:02:14 18:19:14
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Details:
The phenomenon of a red flash during sunset shares similarities with the more commonly known green flash. However, unlike the green flash, which appears at the upper edge of the solar disk as it vanishes below the horizon, the red flash emerges at the lower boundary of the sun. This means it never manifests as the final visible fragment of the sun before it sets.
Under certain conditions, particularly when the sun dips beneath a sharply defined cloud bank near the horizon, the red flash can become distinctly visible. It momentarily separates as a subtle yet striking detachment of the sun’s lower red rim, an effect caused by the sun’s movement through minor atmospheric inversions. Due to its fleeting and delicate nature, observing this phenomenon requires the aid of a telescope.
The images capturing this rare event were taken on January 26, 2025, in Fuerteventura using a Canon R6 Mark II. A telephoto RF 100-500mm lens was paired with a 1.4x extender, with settings adjusted to ISO 100, a shutter speed of 1/8000 sec, and an aperture of f/40 to achieve optimal clarity.
Photographer's website:
https://www.facebook.com/maciej.libert
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