You will need a high ISO for the low light coditions.At least 400 but maybe a little higher even.I would think your lens wide open at 3.5 would be ok.I dont think I would buy a faster lens if Graceland might be the only time you really needed it.Im not familiar with your camera but if you have a shutter priority mode so it adjusts automatically I would use that.Your gonna want a fast shutter speed so you dont get blurry photos from camera vibration.If you adjust it manually just set it to a fast speed.Practice inside your house to get use to manual mode.The great thing about digital is that you can waste all the shots you need to.
Jak


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