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Ultimate Guide about Lens Distortion That You Should Know

Photography is the ultimate art. People try to learn about it every day to master photography and to improve their skills. The internet is full of crazy pictures that seek your attention within seconds. You can never ignore an aesthetically beautiful image. Some of the credit for this goes to the photographer, some to his skills, and some to the lens used.

Using a good lens marks a huge difference in the quality of your images, but have you ever heard about lens distortion? If you have no idea what distortion in-camera lens means, then this article is the best place to learn.

Part 1. What Is Lens Distortion?

Distortion means the deviation from the straight rectilinear projection. In the case of lens distortion, it is the deviation from the ideal projection that is considered in the pinhole camera model. If we talk from the perspective of geometric optics, then this means that the straight lines in the scene do not appear straight in the image.

what is lens distortion

Camera Lens distortion is any kind of deformation in the image that is caused by the camera lens while you are taking pictures. In simple words, we would conclude this for you as distortion in-camera means when the lens produces curved lines in any image, and it fails to deliver the straight lines from the actual scene.

Part 2. 4 Basic Types of Lens Distortion

After you have a little knowledge about what camera lens distortion is, it's time to discuss it in detail. Lens distortion has a few types. The article understudy will share and talk about 4 basic types of lens distortion.

1. Barrel Distortion

Camera distortion where the straight lines in the real scene bend and curve inward, giving a barrel-like shape is known as the 'Barrel Distortion.' In other words, you can also describe barrel distortion as when the straight lines from the scene bend outward just from the center part of the image, shaping it like the walls of a barrel.

barrel distortion

This generally happens when the size of the image sensor is small, whereas the lens's field of view is wider. Most of the time, wide-angle lenses like 20mm lens or zoom lenses aid in producing images with barrel distortion.

The most commonly observed example of images with barrel distortion is the architectural images. Where the straight building lines bow outward and away from the center of the image, you can easily guess that it is barrel distortion. On the other hand, for cases of barrel distortion in portraits, you can notice that the head looks relatively larger compared to the rest of the body. The subject looks pudgy.

2. Pincushion Distortion

Another type of lens distortion is Pincushion distortion. This lens distortion is the opposite of barrel distortion. The straight image lines curve outward from the center in Pincushion distortion. Mostly Pincushion distortion is observed at the telephoto lens.

pincushion distortion

This is because of the increased magnification, especially on the parts of the image that are close to the edge of the image frame from the optical axis. The case is always true if the lens is at a shorter focal length. Pincushion distortion is a very common trouble for zoom lenses. Most of the consumers and also a few pro-level zoom lenses suffer from this lens distortion. 

In pincushion distortion, the size of the image sensor is more prominent, whereas the field of view is smaller. Due to this reason, it needs to be stretched to fit properly, causing the scene's straight lines to appear to be pulled upwards. Although, for portraits, this type of distortion is very useful because it makes the subject/people appear thinner than what they actually are.

3. Mustache Distortion

The next type of camera lens distortion is mustache distortion. This type is considered a very ‘complex’ combination of both barrel distortion and pincushion distortion. It has mixed elements from the other two types. This radial distortion is also known as the ‘wavy’ distortion.

As mentioned earlier that mustache distortion is the combination of both barrel and pincushion distortion. So, this means that the straight lines from the actual scene appear curved inward towards the center of the image, whereas the extreme outer corners appear to be curved outwards.

mustache distortion

This distortion type is very complex, so it is not easy to deal with it. All the other types of lens distortions are handled, whereas, for this mustache distortion, special software is required to fix things. A great number of old lenses and also some modern lenses suffer from mustache distortion. The Nikon 18-35mm f/3.5 - 4.5D lens is the best example of the nasty mustache distortion.

4. Fisheye Lens Distortion

The last type of lens distortion is the Fisheye Lens Distortion. Some lenses are specifically designed to be curvilinear, like the fisheye lens. In this case, the straight lines from the scene appear as curved in your final image.

The curvilinear lenses do not disturb anything by stretching the image, but such lenses have a heavy impact on the image by distorting it and purposely bending the straight lines and making them curved. By using a curvilinear lens or fisheye lens, you can naturally curve all the straight lines visible in your frame.

fisheye lens distortion

Curvilinear lens or fisheye lens is usually applied only to wide-angle lenses. If you plan to achieve a wide-angle of view, then the best-suggested lens is a fisheye lens. The curvilinear or fisheye lens has strong visual distortion. It creates images that give a wide panoramic view and a hemispherical image. You can also zoom in to small areas with Fisheye distortion without losing the sense of overall distribution.

Part 3. How to Make Video Distortion Effects?

If you are worried about making your video distortion effects, let us give you the best suggestion and advice. Try and work with Wondershare FilmoraPro. The editing software has so many features in it. Using this, you can get professional editing results. You can also customize animations here to make your own creative and unique signature style.

Download Win Version Download Mac Version

In this section of the article, we will talk about FilmoraPro’s Distort Tool that lets you add graphics and allows you to play with your image with great ease. We will now talk about various options and effects that Filmora Pro Distort Tool offers us.

1. Heat Distortion Effect

If you want to add heat effect to your video, using the Heat Distortion Effect is the best option. This effect simulates realistic heat waves. The effect lets you control the speed, direction, intensity, etc. You can also adjust the intensity of the blur using the diffusing strength feature. The distortion rotation feature changes the direction of distortion.

heat distortion effect

2. Witness Protection Effect

Hiding a particular area within an image is possible with the Witness Protection Effect. As this is applied using pixilation or blurring; faces, watermarks, and other elements within an image can be perfectly hidden with this effect. Users can adjust the size, edge softness, scale, orientation, and set the method of performing the Witness Protection Effect.

witness protection effect

3. Mosaic Effect

If you want to create pixelation, then Mosaic Effect is the best one to be used. The effect is used to divide the layer into solid-colored blocks. You can customize the mosaic effect by setting the desired number of blocks in both column and row. The effect is usually used to create a fake low-resolution image.

mosaic effect

4. Twirl Effect

This effect adds a twist in certain parts of the image to create an illusion of a spinning image. This effect sets the focal point of the spin effect. You can adjust the spins at the edge of the distorted area. The angle control allows you to manage the degree of spin.

twirl effect

5. Insect Vision Effect

The coolest effect is adding a honeycomb lens pattern to your image. This is offered only by FilmoraPro’s Insect Vision Effect. You can adjust the effect by zooming in the cells. The effect also lets you manage the size of the cell.

insect vision effect

6. Bulge Effect

This effect either makes the image appear outwards, or else the image might seem to sink away from the viewer. The bulging effect adjusts the size of the distorted area in the picture. The effect also changes the size of the bulge.

bulge effect

7. Magnify Effect

This magnifying effect lets you zoom in to a specific area in the image. The effect promises to maintain the quality of the image, that even after several magnifies, the resolution remains unaffected.

magnify effect


The article above started from the basics, like discussing lens distortion. Then the article made its way to talk about the different types of lens distortion. Lastly, we have shared multiple distortion effects with you that could be used to make things crazy.

Wondershare FilmoraPro offers you so many different features and a lot of video distortion effects. The article is a complete package to learn everything about camera distortion.

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