I think the treat/toy/disguise advices are great.... you just need t figure out which one works best for her....

try making some sessions of petting and treat giving while holding the camera.... no pics though.... just hold it as bckrazy suggested, so she associates the camera is harmless and get sused to it being there......

later on try shooting somehting, not her, so she gets used to the sound of the shutter and the flash light....

then you can attempt taking one of her...

but every time shes good for even 5 secs, treats/toys/praise are a must....

you can also disguise it in some clothing, so it´s not another box shaped item, and just peek our the lens, and try be more casual as she might pick the pic vibe also...