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Photos should be uploaded by July 21, 2021



Celebrating Light and Optics in these difficult times of pandemic, the Portuguese Society for Optics and Photonics join efforts with the Hands-on Science Network to organize a virtual online informal digital photography contest, V Informal Digital Photography Contest "The Light and the City".

The photos must be taken in the period May 16 to July 21, 2021, and should focus on the Light and its relation to the Town/City you live in or visited.

Photos can be digitally edited/processed.

The photos (up to 3 per participant) should be uploaded,, by July 21 at 23:59 GMT (the name of each picture file should include an abbreviated title/name of the photo and the first name initial and last name of the author). The results will be announced at the closing ceremony of the 18th International Conference on Hands-on Science (, July 23, 2021 at 14:00 (GMT).