I have the Samsung GX10 and bought with the double lens kit like John_g. I sold a Canon 20D to get this kit. I'm very pleased with it as it lets me use my older Pentax K lenses and the kit 18-55 is really quite good. The 50-200 is better than many similar offerings from other makes. Geoffrey Crawley in AP a few months ago said that these lenses were Schneider designs and the better for that. If you have the opportunity to get the GX10 then do it.