- Incorporates the patented 510 iris
- Adjustable over a wider range of 0.5 - 3.0mm
- Filters are of the highest quality optically flat glass in colours:
orange, light green, yellow, medium grey, dark grey and amethyst (purple)
- Can be used as iris only
- Removable steel threaded connection
- Easy clean instructions included
566-S - Same as 566 but in an attractive, anti-reflective black and matt silver finish.
Centre is finished in matt black to ensure that there are no reflections.
