Hey I've decided to upgrade to a Panasonic g7 and buy it with the standard 14-42mm lens. I'm also looking to buy one other lens for it at the moment. I don't care too much for photo, more focused on video so I was thinking about something wider with a low f stop. I've heard about primes but not too sure which one I should buy yet. What would you guys recommend? Also trying not to spend more than $300 because I'm on a budget. Thanks!