Hey everyone. I just received my used Tamron 17-50mm 2.8 this evening. The seller said the glass was excellent but when i held it in the light it has maybe 5 or 6 very small marks on the front element... i wouldn't call them nicks but like tiny rub marks on the coating maybe?? Anyway what do you all think I should do? Will it affect the images much? I'm worried it might cause some flaring. I guess i will have to test it in the day light tomorrow. Should i be worried?