Values of df/dE for the 4s-p and the 3d-f continua of Ca ii have been redetermined, using wave functions derived by numerical integration from a self-consistent field without exchange. For both continua the values found from the dipole moment, momentum, and acceleration expressions for df/dE agree closely when calculated values of E are used. The meaning of this agreement is examined. Evidence suggests that the oscillator strengths for the 4s-p continuum are somewhat more accurately known than has recently been supposed. The 3d-f continuum retains the large size found in previous work and is therefore distinctly not like hydrogen.