It's been de-plated. The copper plating has been removed after the coin was in circulation. Not an error, I'm sorry to say.
1) It is common. 2) Because he is one of the foremost experts in the realm of error coins... Even with the atrocious pictures, it is easy to tell that your coin has been stripped of the copper plating.
One of the worst photos I've ever seen. Despite that, your coin has had its copper plating removed, exposing the zinc core. It's damage after leaving the mint.
You can use almost any phone or camera to take photos. Some are better than others. One word of advice that I would give you is to play around with the camera you have. First, set it on a box or something where you can hang the lens out over the side. You can figure out if you need to move it higher or closer to the coin based on how the picture looks. It's almost never a good idea to take a photo holding the phone or the coin. Lots of good posts on here about that. Take the photo from the top down also, not the side or at an angle. Try it again here when you get a chance. Lets see how it looks!
To add to what @Bambam8778 said, dont take the picture of the coin in the flip. Take it out. You tend to get pretty bad glare from it otherwise.
First thing to ask yourself when you are going to post a picture is can I (meaning you) even determine what is going on with the quality of the photo? I can't even read the date so how could you expect anything good to come from that photo? What is your level of expertise with your smart phone? (Which is what I assume you are using for this?)
It's my phone tried taking pics with my granddaughter s phone worked real good. And to answers your question i'm. completely new to the digital world ..But trying cause i love my coins and ptalking about them.since my mother passed in April she was my coin buddy I really have no one to share my interest with .i definitely know more about coins than phones and computers.Getting. a new phone a week from Wednesday Looking. Forward to talking to you all then thanks
His was a fair question, I think. I mean, I know in general terms that there are lots of zinc cents out there that got de-plated outside the mint, and I've seen some of the videos on how that's done. And I also know (or at least believe) that there are some legitimate error coins (likely quite rare) that were struck on unplated zinc cores at the mint. Would I be able to tell the difference? Maybe. I think probably, yes. But would someone else? Not necessarily. I probably couldn't have, eight or ten years ago. How 'bout we cut the new member a little slack this time? Who's got comparison photos of a real unplated error and a false, "homemade" example for us to compare, for educational purposes?
I read the question as someone who was challenging the information given without knowing what they were talking about, like a lot of new people here do. After that, though, turns out OP is actually willing to learn and take advice given. I even tried to help a bit with the picture taking even though I'm not all that great myself