An opal lamp is a type of filament light bulb enclosed in opal glass, which diffuses the light evenly to reduce harsh shadows and glare. This makes it ideal for photography, studio lighting, and general illumination where soft, uniform lighting is desired.
Opal lamps are commonly used in portrait and product photography to create flattering, even lighting on subjects and surfaces. The diffused quality of the light helps minimise reflections and hotspots, providing a more controlled and visually pleasing illumination compared to clear or standard filament lamps.