I've replaced my Olympus C4040 zoom camera and no longer have a need for these accessories, all are in great condition and fit various Olympus cameras.
1) Olympus TCON-17, 1.7x Teleconversion Lens, used very little, less than a year old, like new, with box, pouch and caps, 55mm threads, paid $100 asking $65 plus shipping ***SOLD**** Thanks Joe
2) ScopeTronix STEP4149, 41mm - 49mm Step ring
paid $30 asking $15 plus shipping ***SOLD*** Thanks Thomas
3) Televue TVDCE49, TV 49mm Digital Camera EP ring, works with TV 32mm plossl and other eyepieces, like new, paid $32 asking $20 ***SOLD*** Thanks Thomas
4) Qualide Step Ring, 49mm - 55mm $3 ***SOLD*** Thanks Bob