Friday, December 18, 2020

An Eight Year Long Exposure

Here's an excerpt from a press release from the University of Hertfordshire from last week:

A photograph thought to be the longest exposure image ever taken has been discovered inside a beer can at the University of Hertfordshire’s Bayfordbury Observatory.

The image was taken by Regina Valkenborgh, who began capturing it towards the end of her MA Fine Art degree at the University of Hertfordshire in 2012. It shows 2,953 arced trails of the sun, as it rose and fell between summer and winter over a period of eight years and one month. The dome of Bayfordbury’s oldest telescope is visible to the left of the photograph and the atmospheric gantry, built halfway through the exposure, can be seen from the centre to the right.

Click here to enlarge.

The previously "accepted" record for longest exposure was a Michael Wesely photo that was just over half as long: 4 years and 8 months.

Here's a bit more on Valkenborgh's record-breaking image from the Smithsonian Magazine.

And here's a video by Justin Quinnell showing how to make your own pinhole camera that can hold up for a long exposure:

Direct link:

An example of a 6-month exposure from Quinnell.


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