Longest exposure ever - eight and a half years

[westmarch]

Saw this exposure of 2,953 tracks of the sun on the University of Hertfordshire website:

https://www.herts.ac.uk/about-us/media-centre/news/2020/longest-known-exposure-photograph-ever-captured-using-a-beer-can

John

 

[vineyard]

Wow!

[Luke]

Very cool! I noticed the other day that FLO sell a version. I thought it might have been a joke product at first, like their Hubble telescope:

https://www.firstlightoptics.com/other-science-gadgets-models-toys/solarcan-ready-to-use-solargraphy-camera.html

Edited December 14, 2020 by Luke

[Montana]

I buy all mine from FLO Luke  My next one is due off on Christmas eve. Like the above image all the summer trails are knocked off, so this year I experimented by not using the hole that comes with the can and I have placed another half way up the can to see if I get more of the summer trails. We shall see.......

This was last years attempt which I was pleased with but disappointed with at the same time. I would be disappointed after 2 and half years too!

2019-12-24 Solarcan by Alexandra Hart, on Flickr

The can from FLO

Alexandra

[Montana]

By the way, you only need to expose for 6 months, everything else thereafter is just overwriting previous exposures tracks. There is nothing to be gained for leaving it for 8 and half years, unless of course you live in the most cloudy part of the world in existence

Alexandra

[Peter Drew]

Try a search for Justin Quinnelle, he has a website devoted to his pinhole camera imaging.         🙂

[callisto]

13 hours ago, Montana said:

unless of course you live in the most cloudy part of the world in existence

You mean where I live