From left to right: William Optics FLT 152 f/8 (FT3545) TMB 130SS f/7 (FT3545) Takahashi TSA-102S f/8 (FT3035) Vixen ED80SF f/7.5 (FT2025) TMB 80SS f/6.3 (FT2025) They all equip Starlight Instruments Feather Touch Focuser.