Connect an old video camera or GoPro and film content and you're often left with lens distortion, which is called a 'fisheye' effect within the industry.
Fisheye is an effect where the edges of your lens look barrelled and a little curved. The problem here is, when you try and join up this video with other content, it's hard to match due to the distortion. Most commercial video editing tools will sort the issue for you, but not everyone can afford the expense.
Ashampoo Video Fisheye Removal is a tool designed for one purpose: it will auto-correct your video from various sources, with one click. It ships with presets for over 50 cameras (GoPro, Mobius ActionCam, Rollei, Sony and many others), plus it offers a live preview so you can make manual adjustments if necessary.
You're not limited to lens correction either. You can make small adjustments to the quality of the video, including rotation, altering the balance, exposure and colour settings, crop and then, once you are happy with the results, you can export to various video formats.
And that's about it. You can then import your movie into another editor for further processing.
Lens distortion used to be a big issue for old video and action cameras but is far less of an issue in 2019. This low-cost tool could be handy if you have an old camera lying around which suffers from lens distortion.