Getting from A to B on your own two feet may be becoming a lost art. Not just being able to follow a track and persevere when you think you are lost, but also crunching the kms, one after the other, to reach a distant goal. At the end, you’ll want to know where you’ve been, how far you’ve walked and what time you did it in. Continue reading
Dersch’s A and B vs. Zoom
It seems like we’ll be waiting some time for the camera that takes the view you saw and makes it into a picture on its own. On the way to this goal a number of problems turned up that were solved on the computer. Low dynamic range (high contrast) was improved by bracketing and enfusing; barrelling (radial distortion) by determining the Dersch coefficients (left) and applying a counter-distortion; and chromatic aberration by measuring sets of aberrations (below right) and remapping the colour channels so that they now matched each other. What we might also like to do is process RAW images, save copies of the originals, both as JPG and in a sturdier format such as PNG. And while we’re moving the formats around, taking care that the EXIF data gets transferred too, perhaps a little extra data could be included. Then some postprocessing like Advanced Tone Mapping. And finally, thumbnailing and sharpening so that the images can be experimented with. Oh dear, it seems like Christmas is rather early this year. Continue reading
Koru – the fern leaf spiral
The go-ahead for the new adventure came late last week, after a couple of weeks of prelegal danse macabre. Anyhow, it’s there now, and the final preparations can begin in earnest.
For begun they have well before this time last year, when I was originally planning this trip. There have been plans and preparations, and prices to compare and check again. One of the most comprehensive questions covered was that of photography, although that was no longer a question of what camera to take, but rather how to deal with all of the eventualities that hacking the current set of three cameras has brought with it. Continue reading
