Use Fujifilm X, Leica DG or Zeiss lenses if you're discontent with the build quality. Sigma also has a very good quality lens lineup. I only need two, a standar

Use Fujifilm X, Leica DG or Zeiss lenses if you're discontent with the build quality. Sigma also has a very good quality lens lineup. I only need two, a standard and a 28-30 mm equivalent. Could also do with the wider one. On the Ricoh GRD I never needed anything else.