Hi. I just got a Panasonic Lumix DMC-GH3, and am unsure of what lens to buy. I can go up to about $300, but the cheaper the better. The camera has a Micro Four Thirds-mount. It will be used largely as a travel camera, and it will shoot mostly outdoors in available light. I would like for the lens to also be acceptable in low light. My minimum requirement for aperture is f2.8, preferably even wider. I want a prime lens, between 35 and 60mm. I am aware of the 2x crop factor. The lens will be used mainly for filming. When traveling, I will only bring a small gorillapod, so a lot of the time, I will shoot handheld. Will I then benefit much from an image stabilizer? If so, that would be a big plus. Because I will be traveling with the lens, weight is an issue. The lighter the better. Thank you!!