Poul Jensen’s Videos
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Late Night at Twelvemile Summit
01:562,225 Plays / 31 Likes / 5 Comments
February 20 2012 from 2:54AM to 7:07AM. A comfortable night with temperatures probably around 0F/-18C and not much wind. That hill is not as close as it seems, and the aurora didn't wait for me to…
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Moose Mountain Wildfire (Fairbanks, Alaska May 20 2011)
00:45297 Plays / 2 Likes / 3 Comments
Wildfire on Moose Mountain close to Fairbanks, Alaska, on May 20 2011. There's a large residential area just south of the fire, but no structures were lost in the blaze which must be considered quite…
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00:121,696 Plays / 20 Likes / 0 Comments
An older video showing the progress of a typical auroral substorm. Discrete auroral arcs to the north slowly drift south until an instability triggers a substorm, in this case somewhere to the west…
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00:32773 Plays / 3 Likes / 1 Comment
Starts just before entering the Alaska Range heading south. The Denali complex glides by before passing over the glacier carved valley of the Susitna River. Footage has been stabilized somewhat in…
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International Polar Year contest video - Alaska
04:071,290 Plays / 22 Likes / 8 Comments
This video was my entry for a competition at University of Alaska Fairbanks related to the International Polar Year. Unfortunately, I never obtained the footage I had envisioned when I started working…
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DSLR Flicker - Canon 40D (TV) vs Nikon D700 (TV)
00:211,209 Plays / 4 Likes / 0 Comments
The Canon reports 1/8 ev aperture steps to EXIF, but the footage reveals that it doesn't hold true. Most likely, the lens (Sigma 20mm f1.8) is only capable of 1/3 ev steps and the nearest 1/3 ev value…
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DSLR Flicker - Canon 40D (AV) vs Nikon D700 (AV)
00:17842 Plays / 2 Likes / 1 Comment
As EXIF shows, the Canon adjusts shutter speed in 1/8 ev steps which gives noticeable flicker. The Nikon clearly doesn't save accurate values to EXIF, but truncate them to nearest 1/3 ev making it…
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01:131,026 Plays / 21 Likes / 4 Comments
Chinook is a native Indian word used for foehn winds on the lee side of mountain ranges and particularly used in the northwest Pacific region. It is characterized by strong and unusually warm winds,…
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Time Lapse Flicker: S3 in TV mode vs. SX100 in AV mode
00:22308 Plays / 2 Likes / 1 Comment
The purpose of this test was to see how small steps these compacts do in aperture by leaving the S3 in TV (shutter priority) mode and how smooth aperture variations look in practice as compared to…
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Time Lapse Flicker: S3 in Manual vs. SX100 in P Mode
00:24201 Plays / 3 Likes / 0 Comments
A possible reason why DSLRs exhibit more flicker than compacts could be if their physical shutters are locked to 1/3 ev exposure steps while electronic shutters on compacts are allowed much smaller…
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DSLR Flicker - 300D in TV mode vs. 350D in Manual
00:18913 Plays / 2 Likes / 3 Comments
In this test the 350D shows no flicker at all in full manual mode while the 300D in shutter priority mode is subject to significant flicker due to ~1/8 ev steps in aperture. As usual, manual (cloudy)…
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DSLR flicker - 300D in Manual vs. 350D in AV
00:203,089 Plays / 4 Likes / 2 Comments
This test shows how the how the 300D in full manual mode behaves vs. the 350D in aperture priority mode. As can be seen there is a slight amount of flicker to be seen for the 300D even in full manual…
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Here are all of the videos that Poul Jensen has uploaded to Vimeo. Appearances are videos that Poul Jensen has been credited in by others.
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