on a more real his new series 120-400mm and 150-500mm long zoom stabilized photographers will offer an interesting alternative to more expensive offer, inevitably, de los fabricantes de cámaras.

Write the above sentence using proper case.
On a more real his new series 120-400mm and 150-500mm long zoom stabilized photographers will offer an interesting alternative to more expensive offer, inevitably, de los fabricantes de cámaras.