I have been trying to decide on purchasing a 50mm 1.4D or 85mm 1.8D lens for portraits to capture face and body. I'm not sure which lens would work best on the D5000 Camera. I've also seen two 50mms 1.4D and 1.4G. Not sure which would work better. I've also read that the 35mm 1.8 works well. Could someone help with advise. Thanks Deb