Core Function: This product is a professional-grade film viewing and transillumination workbench, designed for its core function: providing a uniform, stable, and high-color-rendering light source for accurate evaluation and processing of various film types. Key Technical Parameters: Light Source: High-color rendering index (CRI 90/95 and above is preferred) LED lamps with a standard color temperature (e.g., 5500K D65 standard light source) ensure accurate color judgment. Compatibility: Compatible with all film formats, including 135 roll film, 120 medium format film, and larger loose-leaf film. Uniformity: Professional light guide plate technology ensures consistent brightness across the entire viewing surface, free of hot spots and vignetting. Professional Applications: Film Photography: Rapidly screen and edit negatives in formats such as 135/120. Post-Production: Perform film proofreading and color analysis, providing pre-production support for darkroom enlargement or digital scanning. Digital Workflow: Serves as a copy station, working with a digital camera or scanner to create film copies. Product Value: Provides photographers, photo agencies, and art schools with a reliable, professional film review solution, an essential component of a rigorous photography workflow.