A little background first, gleaned from an English machine translation of the official Festival page. The Festival was founded in 2009, went through a major relaunch in 2012 and for 2013 the theme became "building with light". The aim is to create "a wide festival where art, light and water form the core".

Lumia 1020 user John was on hand to snap this year's exhibits at night, here are a couple of my favourites from the set:

Interestingly, the photo above was taken with extra long exposure, thanks to OIS and (presumably) John resting the phone on something solid. It breaks all the usual photographic rules and probably looks quite a bit brighter than than scene looked to the naked eye, but I like the 'explosion of light' effect. It's not often you see over exposure that looks this crisp.

Created from crane-hung LED strips, the tree growing out of the river is rather appealing. It's very crisp too, because of the 1020's OIS, and with almost zero noise*.

* In fact, the low noise is all the more welcome because John wasn't using the PureView oversampling at all. He was shooting just full 34MP shots, as you can see if you click through the link below and choose 'view all sizes'. I still maintain that few people need this mode, mind you - who has a screen large enough to view a 7712 x 4352 pixel image? I'd have stuck to 5MP oversampled shots, with zoom at the time of capture, if needed, for absolute best quality.

You can view the whole photo set here on Flickr. Note that the set is unedited and contains a few 'set up' shots and some where John was experimenting with exposure, etc. Also note that at least one contains an official profanity (you'll see what I mean)!

UPDATE: There's now a second set of photos of the same subjects from John, this time using just 5MP PureView mode, as suggested above!