I just bought the K30 to use with a M 50mm f1.4 and the M 24-35mm. Both my wife (camera technophobe) and I found it really easy to use Live View to take photos in focus using Live View. We found we couldn't quite get it right with Focus Peaking but probably because I am not using it quite right. I would definitely recommend the K30 with old lenses given the current price.