Filter Green, E39, black l-mount 4 ASPH is a benchmark

4 ASPH is a benchmark in all optical performance characteristics

there will be some degree of “filter factor” that reduces the amount of light coming through the lens

Leica breaks its own record and introduces the world's highest-speed aspherical lens: the Leica Noctilux-M 50 mm f/0

Summilux-R 80 mm f/1

Filter Green, E39, black l-mount 4 ASPH is a benchmarkThese specially calculated colour filters are particularly recommended for black and white photography with the Leica M Monochrom. The yellow, green and orange filters allow photographers to explore a whole range of creative effects with light and contrast. By modifying the conversion of colours to greyscale values, the colour of the filter in the original scene becomes lighter, and its complementary colour darker. This can be used to create uniquely