Letters that make camera obscura
s, a, o, b, e, c, m, r, u are letters that make 'camera obscura'
Words within camera obscura
ER, camera, OB, AM, BS, ERA, cur, SC, Sc, cam, RA, Ur, CA, ME, Cam, Ob, Ra, Am, Ca, Cu, Er, era are words within 'camera obscura'