IR Blocking Filters
These filters are dielectrically coated blocking the infrared and ultraviolet regions but giving excellent transmission in the visible region 400 / 700nm.
UV Blocking Filters
Dielectrically coated filter blocking undesirable UV light radiation giving excellent transmission in the visible.
MINUS Violet Filters
Minus Violet filters are supplied with an anti-reflective coating allowing the maximum amount of visible light and absorbing the violet and ultraviolet below the 420nm region.
NEUTRAL Density Filters
Manufactured from Schott and Hoya Glass types used to decrease the transmitted light across a broad spectrum. Different densities can be offered to customers required specifications.
We can offer direct or similar equivalent filters to the wratten filter series.
UV, Visible and IR Transmitting.
H Alpha Filters
H.Alpha Filters manufactured 1.25” and 2” diameters
These filters block all unwanted light especially the mercury and sodium emissions and the infrared region, centred at 656nm to give visible detail only in the narrow Hydrogen Alpha band..