Type one : SLR + T-Ring + 1.25" T-Adapter + Telescope
Type two : SLR + T-Ring + 1.25" T-Adapter + Zenith Mirror + Telescope
Type three : SLR + T-Ring + Extension Tube + 1.25" T-Adapter + Telescope
Type four : SLR + T-Ring + Extension Tube + 1.25" T-Adapter + Zenith Mirror + Telescope