How to get the SPUser Object from SPfield(Person or Group)

Hello Friends

Here is the code how to get the SPUser Object from SPfield(Person or Group) from a sharepoint list and get the email address, login name of that user.

Here is a snippest of code.

SPFieldUser userField = (SPFieldUser)SPContext.Current.Web.Lists["SiteName"].Fields.GetField("AdminName");
                SPFieldUserValue fieldValue = (SPFieldUserValue)userField.GetFieldValue(myitem["AdminName"].ToString());
SPUser user = fieldValue.User;
//user.LoginName;

Happy Coding
Disha Shah!!!