Lightnings taking a ride

by ceinmart

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1,658 reputation
615
bio website vyznev.net
location Helsinki, Finland
age 35
visits member for 4 years, 1 month
seen 5 hours ago

I'm a PhD student in biomathematics, working on stochastic individual-based models of evolution in spatially structured populations. My other interests include cryptography, programming games and puzzles, photography and graphic design.


I'm the main author and maintainer of the Stack Overflow Unofficial Patch (SOUP), a user script for browsers with GreaseMonkey-compatible user script support (Firefox, Chrome, Opera, possibly Safari) that fixes or works around a number of outstanding issues with the Stack Exchange user interface.

I tend to answer a lot more questions than I ask. Some answers I'm rather proud of:

CC-Zero Please consider any (original) code I post to Stack Overflow and other Stack Exchange sites to be released under CC-Zero unless stated otherwise. You may do whatever you want with it and don't have to credit me in any way, although of course that would be nice.


Aug
17
revised How can I create an inexpensive white backdrop?
reupload image from imageshack to stack.imgur before it gets replaced by ads; see http://meta.stackexchange.com/q/263771
Aug
17
revised Why does the Canon 1D Mark III cost more than the 1D Mark IV?
reupload image from imageshack to stack.imgur before it gets replaced by ads; see http://meta.stackexchange.com/q/263771
Aug
17
revised How much “noise” is acceptable in a photograph?
reupload images from imageshack to stack.imgur before they get replaced by ads; see http://meta.stackexchange.com/q/263771
Aug
17
revised What is the next step up from the Canon T2i?
reupload images from imageshack to stack.imgur before they get replaced by ads; see http://meta.stackexchange.com/q/263771
Aug
17
suggested approved edit on How can I create an inexpensive white backdrop?
Aug
17
suggested approved edit on Why does the Canon 1D Mark III cost more than the 1D Mark IV?
Aug
17
suggested approved edit on What is the next step up from the Canon T2i?
Aug
17
comment Why do two different cameras using the same settings produce photos with different exposure levels?
ImageShack seems to have deleted your image, and replaced it with an ad banner. If you can, please reupload the image (or something equivalent) using the image upload button in the editor toolbar (which will upload it to Stack Exchange's imgur account).
Aug
17
comment How do I get proper focus when photographing lightning strikes?
ImageShack seems to have deleted your image, and replaced it with an ad banner. If you can, please reupload the image to stack.imgur instead.
Aug
17
suggested approved edit on How much “noise” is acceptable in a photograph?
Aug
17
comment How do I remove dead pixels from a digital photo?
ImageShack seems to have deleted your image, and replaced it with an ad banner. If you can, please reupload the image to stack.imgur instead.
Jul
29
awarded  Yearling
Jul
26
awarded  Enlightened
Jul
26
awarded  Nice Answer
May
27
awarded  Popular Question
Apr
11
comment How to take upright grave stones without squatting down?
Still, it can certainly work, and you (already) have my +1 for that. I just wanted to point out some potential issues in advance. In the end, the only real way to find out if this method will give acceptable results for the OP is for them to go out, take some test shots and try it. (One thing I would suggest for the OP is getting as far from the gravestone as they reasonably can, and using a long lens / zoom setting to take the picture. The less you need to change the perspective in post, the less likely it is to look "funny".)
Apr
11
comment How to take upright grave stones without squatting down?
That's true, and I do have some experience with this technique myself. But with architecture, you don't usually end up with visible surfaces in the picture that would've been hidden if had been actually taken face-on.
Apr
11
comment How to take upright grave stones without squatting down?
This can be a good solution, but do note that it can sometimes produce a weird-looking perspective. For example, if you applied it to a picture of a low gravestone taken from higher up, the top side of the gravestone would remain visible even after the tilt correction, possibly making it look as if it was slanted. The background will also look quite different from what you'd get by moving the camera lower.
Mar
21
comment How can I add a border to a JPEG photo without affecting quality?
I didn't vote (up or down), but you might want to work on your spelling and grammar to give a better first impression (and also, honestly, to make your answer easier to read). Also, this question already has several answers (and mine, especially, turned out quite long); at some point, some people may start downvoting (or at least not upvoting) answers that don't clearly add something new to the existing ones. Also, try to structure your answer so that the important bits stand out at a glance; in this case, the only part you've highlighted in bold is an unimportant footnote.
Mar
19
comment How can I add a border to a JPEG photo without affecting quality?
@thomasrutter: I used 4:2:0 subsampling for all my tests, since IME that's the most common setting in general use (and since, for the original border task, it's the worst-case situation). It's also what the test images I downloaded from Wikipedia used, so there's no difference there. I can't tell with 100% certainty what mattdm used, since he converted all his images to PNG, but it sure looks like 4:2:0 too.