Rollei Retro 400S is a 35mm black and white film designed for flexible use across a wide range of lighting conditions. With an ISO of 400, it performs well in both daylight and lower-light environments, making it a versatile option for everyday shooting. It produces strong, well-defined contrast with deep blacks and bright highlights, creating a crisp and structured monochrome look. Grain is more visible than in low-speed films, adding texture and a slightly gritty character without losing overall clarity. Rollei Retro 400S is often used for street, documentary, and general photography where adaptability and a more pronounced black and white aesthetic are desired.