The UV Yellow Orange 19mm Panchromatic Filter E19 is a high-quality filter designed for Leica Elmar L39 50/3.5 and 35/3.5 lenses. Perfect Compatibility Standard E19 19mm size, perfectly compatible with Leica L39 Elmar 35/3.5 and 50/3.5 lenses, ideal for panchromatic shooting modification.