566 Gehmann rearsight iris with 6-colour filter

Incorporates the 510 iris
Iris adjustable over a wide range of 0.5 - 3.0mm
6 optically flat glass colour filters which can be precisely located in position: Yellow, Light Green, Orange, Purple, Dark Grey and Light Grey
Locking collar allows precise location of the V-mark.
Can be used as iris only
Removable steel threaded connector for the opportunity to add, for example the dioptre 50300-0 or 50309
Light reflection is kept to a minimum by applying a special matt finish to all external and internal surfaces