What is the "correct" way to initialize a C# delegate?

Question

C# delegates have always been difficult for me to grasp and so I was very happy to stumble across logicchild's article on The Code Project web site titled "C# Delegates: Step by Step". He has a very succinct way of explaining C# delegates and I can recommend it to you. However, in trying out the examples, I see that are two ways to initialize a delegate, mainly:

    //create a new instance of the delegate class
    CalculationHandler sumHandler1 = new CalculationHandler(math.Sum);
    //invoke the delegate
    int result = sumHandler1(8, 9);
    Console.WriteLine("Result 1 is: " + result);

and

    CalculationHandler sumHandler2 = math.Sum;
    //invoke the delegate
    int result = sumHandler2(8, 9);
    Console.WriteLine("Result 2 is: " + result);

where the math class is defined as

public class math
{
    public int Sum(int x, int y)
    {
        return x + y;
    }
}

So which is the "correct" way and why?

Answer 1

They are both correct, but method group conversion, which is the second option was added in 2.0 (IIRC). I.e. if you're using an old version of the compiler you need to use the first option. Otherwise the extra typing is really redundant.