Give a man a fish, and...

August 05, 2015  •  Leave a Comment

The image on my home page has been seriously tweaked from the original.  Here's the final result:

_SK_6943_SK_6943

And the original:

Interesting, eh?

Image shot with a Canon EOS 1ds iii using a Canon EF 8-15 fisheye lens. Processing in Lightroom 6.

Adobe Lightroom incorporated a "de-fishing" tool (actually applying a lens profile) a few versions ago, and it's been getting better and more aggressive over time.  (Us de-fishing afficionados have been using tools like ptlens to do this, but now everyone can get at them!)  Simplying applying the lens profile does a pretty decent job, but the really fine work involves going into manual mode and working the vertical, horizontal and distortion settings to make the lines ruler-straight.

There are tradeoffs, however.  De-fishing can severely warp objects in the corners (and spread the pixels out a bit, so you might lose a little resolution on the margins), so a fair bit of subjectivity (and subject matter selection) is necessary.  For example, if any people were close to the lower-right or lower-left corners, the picture would have looked terribly unnatural.


Comments

No comments posted.
Loading...
Subscribe
RSS
Archive
January February March April May June July August (3) September October November December (1)
January February March April May June July August September October November December
January February March April May June July August September October November December