I have a Hasselblad 501 6x6 camera. I own 3 film backs and a 50mm lens. I am looking to purchase another lens and wanted some feedback on what everyone reccommends. I am primarily a fine art/photojournalism photographer, with the occasional dip into album cover art and promotional photography for musicians. I hope this is enough info for you. If not, let me know and we will fix that. Thanks.