#1 Tips:What does lens marking means?

Have you ever take sometimes to understand your lens marking and what does it actually means ?
If your answer is a big no ,then maybe you should spend a little time to go through the article ,
I have tried to collect and compile information from various sources ,so that it can be easily referred in future.If you feel I have missed out any details ,please do leave your comment below.
I will try my best to get back to you.
Random picture from google
Happy reading folks :)