Hi guys still very new to NEX cameras but I have a 5n and am looking to purchase the following lenses from Craigslist. The buyer states they are all in good condition Rokkor 28mm 1:2.5 with case Rokkor 45mm 1:2 Rokkor 100mm 1:2.5 with case Rokkor 135mm 1:3.5 with case Rokkor 75-200mm zoom lens 1:4.5. He wants 25 each or all for $100.00- I've tried to look up each lens and from I've read the 100mm is a good lens. I understand they will all be manual focus and just ordered an adapter from amazon. I have absolutely zero experience/knowledge on the other lens, would you jump on this deal? Thanks guys!