The amount of distortion can vary, depending on camera to subject distance. The straight lines are curved inwards in the shape of a barrel.īarrel distortion is typical on most wide angle prime lenses and quite a few zoom lenses with relatively short focal lengths. The field of view needs to be squeezed to fit, resulting in straight lines being visibly curved inwards and especially the outer edges of the frame. Barrel distortion is common with using wide angle lenses because the field of view of the lens is much wider than the size of the image sensor. What Is Barrel Distortion / Fisheye Effectīarrel distortion is 1 of 3 types of optical distortion with the other 2 types being pincushion and mustache. The videos are very informative and should expand on your existing knowledge of aerial photography and filming.Īlso, check out our aerial photography camera tips post, which will assist you in capturing even better video and stills. The fisheye correction applications discussed below are Adobe Lightroom, After Effects, Photoshop, PTLens and Gimp. This post with examples and videos show you exactly what fisheye distortion is, how it comes about and how you can remove it using 5 different software programs. However, barrel distortion correction in your existing aerial photos can easily be solved with a number of software programs. It was inspired by the trailer for the 1983 film Koyaanisqatsi ( IMDb), which featured time-lapse footage of New York City, the trailer even uses Philip Glass' "Pruit-Igoe" theme from this movie.Having the fisheye effect in your aerial photos is a big problem. The trailer runs for 1:03 and features time-lapse footage of Liberty City.
After about an hour, traffic died down and finally most people could catch their glimpse of the game. Fans flocked to fansites and game video sites hoping they would have copies of the trailer up, causing increases in traffic and more slowdowns. A very lucky few were able to see the trailer before Rockstar's servers crashed under the sheer weight of traffic. Such was the anticipation of this game, the level of hype surrounding the trailer was immense, literally thousands of people were sat at computers waiting for the countdown to hit zero - and when it did, the Internet grinded to halt. It simply showed the game's logo along with a countdown to the trailer - to 6PM EST (11PM GMT) on March 29, 2007. This trailer was announced by way of a countdown on the official GTA IV website, which launched on March 1, 2007. The first trailer is basically a teaser for GTA IV, featuring some cool time-lapse footage of Liberty City.
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