Planning to buy a new lens for my E-PL1 and I already have my kit lens 14-42mm. I want to buy a 17mmf2.8 and a 40-150mm f4.0-5.6 lens but will the 14-150mm f4.0-5.6 do all the job of 14-42mm f3.5-5.6, 17mm F2.8 and 40-150mm f4.0-5.6? theoretically it is yes, I know, practically will it work? and how will it do in low light conditions? Can any one suggest me on this?