Canon Log 3 is a logarithmic gamma curve developed by Canon for their professional video cameras. It is designed to capture a wider dynamic range, allowing for more detail in both highlights and shadows. This makes it easier to achieve a cinematic look in post-production by providing more flexibility in color grading. The primary benefit of using Canon Log 3 is its ability to preserve image quality in challenging lighting conditions. By recording in this format, filmmakers can maintain greater control over the final appearance of their footage, making it a popular choice for professional video production and filmmaking.