Gustav Svensson, Göteborg, Sweden. Have a blog: http://averater.se.
I have user pages on these projects:
Either averater or Gustav Svensson and if possible a link to this page (http://commons.wikimedia.org/wiki/User:Averater) or to my blog (http://averater.se). If the image is used on one of the Wikipedia pages a link to the image page on commons as automatically created is also of course OK.
I have made a small side project as a proof of concept which aims to find the best image om commons. It uses the ELO rating system by presenting images two and two and letting the user decide which of the two is the better one.
Camera information 
I shoot with a Canon 5d mkII. Previously I had a Canon 350d. For those I have:
- Canon 100mm Macro 2.8
- Canon 50mm USM 1.4
- Canon 24-105 L IS USM 4.0
And previously also:
- Canon 50mm 1.8
My contributions 
This should be a bit more selective or subcategorized as I upload more content.
More contributions: Göteborg
Unsorted motives from Gothenburg/Göteborg 
More contributions: Biology
Unsorted photos of plants 
Unsorted photos of fungi 
More contributions: SVG
I've created a lot of SVG files for my wikibook project Matematik för årskurs 7-9 (in Swedish)