This item comes with one RMS, one M26x0.706 (mostly for Mitutoyo objectives), and one M25x0.75 (mostly for Nikon non-RMS objectives)  to selected filter thread adapter so that it can mounted in front of a tube lens. Other size filter thread needs additional ring adapter.

Note: lens and objective shown in some pictures are NOT included.

Dealer Objective Adapter Set RMS, M26x0.706, and M25x0.75