The pricing range for high-definition cameras offered by top brands varies depending on the specific model and features. Generally, you can expect to pay anywhere from $500 to $5000 for a high-quality high-definition camera from top brands such as Sony, Canon, Nikon, and Panasonic. Higher-end models with advanced features such as 4K recording, high frame rates, and professional-grade lenses tend to be at the upper end of the pricing spectrum, while more entry-level models with fewer features are at the lower end. It is recommended to carefully consider your needs and budget when choosing a high-definition camera from these top brands.