High Dynamic Range (HDR) is a technology used in digital imaging and video to capture and display a wider range of brightness and color values than is possible with standard dynamic range (SDR) technology. The goal of HDR is to produce images and videos that more closely resemble the natural range of brightness and color that our eyes can see in the real world. This results in a more vivid and lifelike representation of the subject, with greater detail in the highlights and shadows. HDR is achieved by combining multiple images taken at different exposure levels, or by using a single image captured with a high dynamic range sensor, and then processing the image data to produce the final HDR image or video.
Here are some links to resources that you can use to learn about HDR:
Video tutorials: YouTube is a great resource for video tutorials on HDR. You can find many tutorials that cover HDR photography, videography, and image editing. Simply search for "HDR tutorial" or "HDR photography tutorial" and you'll find a wide variety of videos to choose from.
Digital Photography School has a comprehensive article on HDR photography that covers the basics of HDR, including how to take photos for HDR, how to process HDR images, and how to achieve different HDR styles: https://digital-photography-school.com/hdr-photography-tutorial/
Image editing software tutorials:
Adobe Photoshop has a tutorial on how to create HDR images using Adobe Camera Raw: https://helpx.adobe.com/photoshop/how-to/create-hdr-images.html
Aurora HDR is a popular software specifically designed for HDR image processing, and they have a number of tutorials and articles on their website: https://aurorahdr.com/learn/
HDR equipment tutorials:
B&H Photo Video has a tutorial on how to shoot HDR video with a camera: https://www.bhphotovideo.com/explora/video/tips-and-tricks/how-shoot-hdr-video
These resources should give you a good starting point for learning about HDR and how to implement it in your photography or videography. Keep in mind that creating good HDR images or videos can be a complex process that requires patience and practice, but the results can be truly stunning.