A movie camera, also known as a cinema camera, differs from a regular DSLR camera in several significant ways when it comes to filmmaking.
Sensor size: Movie cameras typically have larger sensors compared to DSLR cameras. The larger sensor size allows for better low-light performance, higher dynamic range, and a shallower depth of field, which is desirable for cinematic productions.
Recording format: Movie cameras are designed to record high-quality video in professional formats such as RAW or ProRes, which offer higher bit depths and bit rates compared to the compressed formats typically used by DSLR cameras. This allows for more flexibility in post-production and higher-quality final output.
Ergonomics: Movie cameras are designed for professional use on film sets, with features such as built-in ND filters, XLR inputs for professional audio recording, and robust build quality. They also often have larger bodies and better weight distribution for use with cinema accessories such as follow focus systems and matte boxes.
Shutter speed: Movie cameras typically have a mechanical shutter that is optimized for video recording, whereas DSLR cameras use an electronic shutter that may cause rolling shutter artifacts during fast camera movements. Movie cameras also often offer options for adjusting shutter angle, which affects motion blur in a more filmic way.
Lens compatibility: Movie cameras often use interchangeable lens mounts that are compatible with a wide range of professional cinema lenses, including prime lenses and zoom lenses with geared focus and aperture rings. DSLR cameras, on the other hand, are often limited to lenses designed for still photography, which may not offer the same level of control or optical quality.
In summary, movie cameras are designed specifically for filmmaking and offer several advantages over regular DSLR cameras in terms of sensor size, recording format, ergonomics, shutter speed, and lens compatibility. These differences make movie cameras better suited for professional cinematic productions where image quality and creative control are paramount.