so I just got this used Panasonic S5 and I love it but the lens it came with doesnt zoom at all and honestly I am super stressed about finding a new one because everything I see online costs like a thousand bucks which I just cant do right now... my budget is maybe $500 at most. I really want to take photos of my kids soccer games this month but I keep seeing brands like Sigma and Leica and I have no idea if they even fit or if I am gonna break the camera by using the wrong one. I dont know where to start or what L-mount even really means for me... are there any cheap zooms that dont suck?