23 March, 2013
Last week the blog fototriss had architecture and buildings as theme. Architecture and (ultra) wide angle lenses can make dramatic images, but also cause much distortion in the image. To over exaggerate a little, walls that should be parallel can appear like the sides of a pyramid.
For example one image straight from the camera taken at 21mm with a crop camera (equiv. 33mm on full frame):
If we trace lines along the vertical walls they will intersect. That is not how the building appears in real life. If the image would have been taken at equivalent to 16-18mm on full frame, the distortion would be much larger.
With the meta data recorded in the image and the help of the lensfun library the image can be automatically adjusted. The second image is processed in GIMP, the GNU Image Manipulation Program, which is great and free alternative to Photoshop. With the plugin GimpLensfun the image is easily adjusted by selecting Filters > Enhance > Gimplensfun. The default settings should be okay if your camera/lens is recognized.
A much better result than the first image. For more advanced use or if the camera-lens combination used isn't available in lensfun, the panorama stitcher Hugin can be used. It can do perspecive correction, simulate architectural projections besides from stitching together many images and more.
The image from Hugin is not cropped compared to the one processed with GIMP and lensfun.
All the tools mentioned in the post are free and open source and part of my must-be-installed list.
17 March, 2013One of the more recent buildings in my close vicinity is the new train station, "Umeå Östra". It's located close to the University hospital (NUS) and the Umeå University campus area. There is also another station, Umeå Central 2km away but in my opinion it's not really needed anymore. Umeå Östra is mostly made of wood and glass and has a very characteristic look, specially since the walls are not vertical, but angled slightly outwards.
11 January, 2013The second part of the Lennart Nilsson documentary was aired recently and made available online for streaming at svtplay. I recommend seeing it this weekend if you haven't already since it is only available until Sunday the 13th.
05 January, 2013During the 90s, Umeå had a big hardcore scene and one of the most known bands were Refused. They split up in 1998 and despite that, they are bigger than ever.
01 January, 2013Swedish television recently aired the first part of a documentary about the photographer Lennart Nilsson. It is possible to see online for a five more days online at svtplay. Well worth watching! I'm waiting for part 2.
01 January, 2013I'll sum up the last year with one image: I lost my brother. I got a daughter. That toy was my brothers when he was a kid and now it has been passed on to my daughter. She loves that toy - just as much as it was loved before.
10 February, 2012I'm amazed that some animals manage to find food during the winter when everything is hidden under a deep layer of snow. There are also people who feed birds etc. during the winter. Those birds are nice to look at, but I spotted a different guest the other day:
08 February, 2012Been working on redesigning the page a bit and there are stil a few more things I want to do and this caused a small break from posting new things. That little break hasn't stopped me from photographing things.