Main reason im posting this is because of the lens I have on the camera. It was stowed away and just came across it 10 minutes ago

It has a Canon Zoom lens on it, 35-80mm lens 1:4-5.6. Is this worth keeping to put on my XSI if for any reason I feel like trying it out? Or will it be a waste of time and maybe I should just sell the camera and lens together. Reason being I read some reviews that say the image quality is good and others say its only beginner don't bother with it.

It's got no IS but hey, what the heck if its from a 35mm camera and now I'm using digital, I can always discard pix right?

Anyone used the lens even in the past or has a comment on it?

Thanks!