New product
The 150 holders have been designed to mount in lenses without thread that have a fixed hood, or with big threads like (95, 105mm).
NiSi are constantly improving their products, due to this the new 150 holders are now square to avoid any light leak, also the new slot design allow take profit of the 99% of the filter surface.
The holders are made in black frost aluminum, this material give us a perfect resistance and lightness to work with filters.