• Material: 6061-T6 aluminium alloy.

     The 30 mm coaxial filter wheels are designed by OMTOOLS for 30 mm coaxial cage systems. With a single wheel structure, there are six filter mounts with SM1 threads. Using the supplied GYKH25A retaining rings, these filter wheels can be used to fix Ø1 inch optical elements. The spring-loaded filter wheels use lens mounts to align filter centers to cage systems. The input and output ports on the main body are also designed with SM1 threads to adapt to our Ø1 inch lens tubes. M3 set screws provided for through holes on the side of cage rods, and these screws can be secured with a hexagon wrench. One M6 mounting hole and two M4 mounting holes are arranged at the bottom to adapt to standard optomechanical elements. At the bottom of the 30 mm filter wheel base, the two Ø6 mm coaxial mounting holes are designed as though holes, while at the top of the base, the two Ø6 mm coaxial mounting holes are designed as blind holes, in order to prevent filters from being hit occidentally by coaxial rods.