The optical and structural properties of CH3NH3PbI3 can be adjusted by introducing other extrinsic ions such as chloride and bromide. In this work, mixed bromide iodide lead perovskites with a 10% fraction of chloride were prepared from methylamine, lead nitrate and the corresponding hydro acid (X = I, Br, CI). The effect of bromide and chloride incorporation on different properties of perovskite thin film was investigated. The Pawley fit method indicates the formation of the iodide halide MAPbI3 Pm -3 m cubic phase for x=0 and the tetragonal P4/mmm phase for x >= 0.3. All deposited films showed a strong absorbance in the UV-vis range. The band gap values were estimated from absorbance measurements. It was found that the onset of the absorption edge for MAPbI(2.9-x)Br(x)Cl(0.1) thin film perovskites ranges between 1.60 and 1.80 eV. Moreover, it was found that both CI and Br affect the PL emission of the mixed halide lead perovskite, the MAPbI(2.9-x)Br(x)Cl(0.1) films displayed intermediate values from 730 nm (MAPbI(22)Br(0.7)Cl(0.1)) to 770 nm (MAPbI(2.6)Br(0.3)Cl(0.1)). 2016 Elsevier B.V. All rights reserved.