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distortion

Panasonic has developed an innovative new way to correct distortion and tilt from single photos

Dec 8, 2022 by John Aldred Add Comment
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Fixing distortion and tilt is a tricky problem. It was solved back in the large format days by having lens boards and film backs that could tilt, shift and move around in all kinds of directions. And while tilt-shift lenses are available for modern cameras, the one thing they can’t fix is lens distortion – particularly from things like fisheye lenses. Of course, such distortion can be fixed in software using manual tweaks or custom lens profiles. But figuring it out automatically?

For software to figure out how to correct such distortion usually takes multiple images so the software can “learn” the characteristics of a lens. But according to Nikkei, Panasonic has developed a new technology that seems to be able to do it from just a single image. Right now, it’s still in the testing stages while they determine if the method can be practically implemented.

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This photo of Bidens and Carters shows what can go wrong with a wide-angle lens

May 6, 2021 by Dunja Djudjic 10 Comments
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Sometimes you absolutely must use a wide-angle lens to get the entire scene in the shot. But there’s a downside to it that can turn out quite hilarious. This is exactly what happened in this photo. The US president Joe Biden and First Lady Jill Biden met with former president Jimmy Carter and former first lady Rosalynn Carter last week. Thanks to a wide-angle lens, the Carters look like giants in a tiny house and the longer you look, the funnier it gets.

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People call out Khloé Kardashian over “Photoshop fail”; turns out it’s wide-angle distortion

Feb 26, 2021 by Dunja Djudjic 1 Comment
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We’ve all seen a bunch of hilarious Photoshop fails (with Vanity Fair adding extra limbs to people probably being my favorite). Khloé Kardashian recently got accused of one because of her huge feet and hands in some photos. But she was unrightfully accused – it was just a wide-angle lens distortion and she tried really hard to explain it to her followers.

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This algorithm is a new way to fix distortion in your wide-angle selfies

Jun 17, 2019 by Dunja Djudjic 2 Comments
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More and more modern phones come with an ultra-wide-angle camera. When it’s a front camera, it lets you capture more people into a group selfie. However, those heads near the edges of the frame will get distorted. A group of researchers has come up with a new method for dealing with this problem. They have created an algorithm that makes your group portraits distortion-free and flattering for everyone in the photo.

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How to remove action camera fisheye distortion in under 20 seconds

Dec 18, 2017 by John Aldred 1 Comment
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Action cameras have become part of many a filmmaker and photographer arsenal. Even if they’re not our primary camera, they’re great for grabbing behind the scenes clips or putting in higher risk situations. And then, sometimes, they are the primary camera, capturing the action. But most of them come with a pretty severe fisheye effect.

Some can deal with this natively in-camera, but often you get the best results in post. But how can you deal with it effectively? In this super short 20 second video from YouTuber Aidin Robbins, we see just how easy it is to fix. Aidin uses Hitfilm Express for this video, but the principle is the same in other editing applications.

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How to quickly use Photoshop to correct severe distortion for perfect panoramics

Aug 7, 2017 by John Aldred 4 Comments
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I make quite a few stitched panoramics. Occasionally I shoot them when I go on holiday and find a cool place. Mostly, though, I shoot them when I’m location scouting. When I come across a new area to potentially photograph somebody in the future, I fire off a few shots to stitch in post. They’re very handy for that. But they often suffer from the same problem. All kinds of warping and perspective issues.

The effect is bad enough if your lens already has some natural distortion of its own. When multiple images are stitched it worsens the issue. This video from photographer Rex Jones comes to the rescue, though, showing us how we can correct it in Photoshop. A great method for perfect distortion free images.

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How zooming with your lens and your feet changes relationship between foreground and background

Apr 20, 2017 by Dunja Djudjic 1 Comment
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Before you raise your torches and pitchforks, this is not another post about how focal length affects your subject, or whether you should “zoom with your feet” or not. I’m sure you’ve already seen how changing focal length and/or distance changes perspective, but this video answers an important question – what can you do with this information?

Jay P. Morgan shows examples how changing your focal length and getting closer or further away from the subject affects the relationship between the foreground and the background. Knowing this helps you achieve different things in a shot, gives it different looks and meanings, or helps you avoid distracting elements.

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This video explains linear perspective and geometry when shooting portraits

Feb 14, 2017 by Dunja Djudjic Add Comment
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Remember the animation showing how focal length impacts the portrait? When you shoot with different focal lengths and your subject takes the same space in the frame, you’ll get a certain amount of distortion. As a matter of fact, this is one of the reasons why camera “adds ten pounds”. In this video, Koldunov Brothers demonstrate how geometry of the face and body depends on the distance from the camera. So, what is it that looks so strange when shooting up close with a wide angle lens?

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Lighting Tutorial: Using 1 Speedlight And Recyclable Stuff From Around The House

Apr 25, 2015 by Laya Gerlock 2 Comments
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Sometimes having a messy studio can inspire you to shoot. I have all sorts of boxes and plastics lying around my studio because I only clean it when I have a client coming. This it inspired me to do a shoot using things that are scattered around. So, this is a quick article on shooting with just one Speedlight and recyclable stuff.

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An Introduction to Glitch Art: Implementing Digital Surrealism Into Your Photography

Jun 11, 2014 by Maaz Khan 4 Comments
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One thing I love implementing in the work that I do is surrealism. When it comes to music production, for example, I like throwing in noises that catch me off guard. I might take samples of speeches and alter the voice of whoever’s speaking, and fit it into something as an introductory cut; vocoders are something I have too much fun with, if I don’t abuse them while experimenting with different sounds and figuring out what works best with what I’m writing.

Similarly, that form of surrealism is something I experiment with in photography to the point where it’s becoming something I generally implement into my work. One way I tend to mess with some of my photos is by giving them glitch distortions. If you’ve heard of this before, you’ve probably heard it referred to as “glitch art”. Glitch art’s gained a good amount of popularity since the turn of the millennium, around the time when digital photography started becoming popular. In the same way film has its imperfections illustrated through the little cracks and marks you see flashing by when a movie’s being projected (the “cigarette burn”, for example), digital work has its imperfections as well. The pixelization of a JPG, the compression of an uploaded mp4, or the complete chaos done to a video when it’s converted to an incompatible format – the digital age now has its own unique form of flaws, and it’s arguably a part of our culture up to today just because of the familiarity each of us have with the imperfections.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Alex Baker: from diyphotography.netAlex Baker is a portrait and lifestyle driven photographer based in Valencia, Spain. She works on a range of projects from commercial to fine art and has had work featured in publications such as The Daily Mail, Conde Nast Traveller and El Mundo, and has exhibited work across Europe

David Williams: from diyphotography.netDave Williams is an accomplished travel photographer, writer, and best-selling author from the UK. He is also a photography educator and published Aurora expert. Dave has traveled extensively in recent years, capturing stunning images from around the world in a modified van. His work has been featured in various publications and he has worked with notable brands such as Skoda, EE, Boeing, Huawei, Microsoft, BMW, Conde Nast, Electronic Arts, Discovery, BBC, The Guardian, ESPN, NBC, and many others.

John Aldred: from diyphotography.netJohn Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

Dunja Djudjic: from diyphotography.netDunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

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