  The production of large $p_{T}$ dileptons and photons originating from
photoproduction processes in p-p collisions at Large Hadron Collider energies
is calculated. The comparisons between the exact treatment results and the ones
of the equivalent photon approximation approach are expressed as the $Q^{2}$
(the virtuality of photon) and $p_{T}$ distributions. The method developed by
Martin and Ryskin is used for avoiding double counting when the coherent and
incoherent contributions are considered simultaneously. The numerical results
indicate that, the equivalent photon approximation is only effective in small
$Q^{2}$ region and can be used for coherent photoproduction processes with
proper choice of $Q^{2}_{\textrm{max}}$ ( the choices $Q^{2}_{\textrm{max}}\sim
\hat{s}$ or $\infty$ will cause obvious errors), but can not be used for
incoherent photoproduction processes. The exact treatment is needed to deal
accurately with the photoproduction of large $p_{T}$ dileptons and photons.
