Posts Tagged borealis

Aurora time lapse

Aurora time lapse, originally uploaded by fyngyrz.

This is 40 still frames from my EOS50D, taken the evening of the onset of the April 3-4-5-6 geomagnetic storm, all from the same point and with the same camera settings. I used Canon’s 50mm ƒ/1.4 lens, wide open, after manually focusing it on a star. All these shots were taken at ISO 3200, 4 seconds exposure, then combined using the Mac’s movie software and converted from .dv to .mp4 using Handbrake, and from thence to flickr.

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Aurora – Geomagnetic storm bonus

One of the many benefits of living in the northern part of Montana is that from time to time, when the k-index reaches 5 or more, the aurora may extend far enough south for us to see it, and in my case, photograph it. Last night I had the pleasure of shooting over 300 photos of the aurora as it waxed and waned as part of the current intense geomagnetic storm. Here is one of my favorites:


You can click on the above image to see it larger, if you like.

Shooting details: Canon EOS 50D [modified IR response in H? range], hooded Sigma EF-S 30mm ƒ/1.4 EX DC HSM prime [ø62mm] using SRAW2 @ 50%, ƒ/1.4, ISO 1600, 5 second single exposure, fixed tripod, processing in Aperture 3.

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