Okay, so I have to do a Lab Report, easy enough, I've done them before, but it isn't so clear, and when I tried doing it, I wasn't sure if I was even doing it right. (Personal Note: DO NOT TAKE PHYSICS CORRESPONDANCE! ><) Anyway, here's what I have to do. The Lab Report is on the relationship between the image distance and the object distance for real images in a converging lens. These are the ONLY instructions they give me. In a semi-darkened room, line up a lighted candle, a convering lens, and a screen. Hold the lens between the candle and the screen, so that the distance from the candle to the lens is about twice the estimated focal length of the lens. Hold the screen on the other side of the lens about the same distance away from the lens: that is at about 2f. Move the screen back and forth until a sharply focused image of the candle appears. Now, my problem is...is it the image of the candle I'm looking for? (which seems highly unlikely) or the FLAME of the candle?