Great posts on this topic lately, a lot of good info

you're asking the stacking software to match a straight line against a curved one. It's not going to do that job! But with correction, the curved line near the edge becomes straight also, and then the stacking software can do what it's designed to do Sure, no doubt about that, it should definitely ...

Ok, thanks for the information. I would have thought that in theory it would be better to correct after stacking. Since applying correction prior to stacking will not improve the alignment of the frames nor make the stack any "better", and the images still need to get stacked, resulting in some more...

I can also shoot a grid and then tweak the distiortion manually...

Fascinating images, thanks for the information.

Amazing images!

Amazing, thanks for the photos!

Lou Jost wrote:The third one has a brilliant strategy!

Indeed

My favorite Tambopata spider is the little one that makes a model, in the middle of its web, of a big nasty spider, constructed from bits of debris. The little spider sits in the center of the big fake spider. That sounded too interesting to ignore, I had to look that up :o Indeed I found that this...

Beatsy wrote:Ref: web building rules. While this isn't the paper I was originally talking about, it does contain some interesting info relevant to the topic.

http://www.cs.bham.ac.uk/~jer/spider.pdf

Nice paper, thanks for sharing

How to correctly apply lens correction to an image that was produced with a microscope objective? For example, Photoshop features a "Lens correction" filter that allows you to choose from several predefined lens profiles, camera make, model, etc. As expected, there are no profiles for my two microsc...

Beautiful images!

Great image and subject.

Great images.

Beautiful images, very nicely captured.

Very nice, the second one is my favourite.