From the initial sample to series maturity: our products undergo strict and comprehensive quality controls, managed and carried out in Germany. This enables us to guarantee compliance with all specifications, guidelines and standards – and satisfy the strictest demands.
Filter with a neutral colour for specific reduction of the amount of light
4x exposure correction = 2 f-numbers
Grey x 4 D 0.60
Neutral colour
With a front thread for an additional filter, a lens cap or a lens hood
HTMC coating: four layers on each side, for very good spectral transparency
Quality standard (glass): high-quality lens glass
Impact on the pictures:
Allows large apertures e.g. when shooting portraits when it is extremely bright: due to a blurred background the photographed person is clearly visible in the foreground
Due to long exposure times flowing water gets "soft"