I used to be a Pro photographer and used a mamiya 330 system and a Rollie as a backup. The Mamiya lens are outstanding and the Portrait lens was sometimes too sharp for older clients [thank the lord for filters]. I always used the Mamiya on a tripod even though I do posses a very useful hand support bracket. For handheld shots I used the Rollie, it was lighter with a virtually silent shutter. There is no parrallex problem with the 330 as there is a compensation device built into the viewfinder and with the standard lens you would rarely use it.