AT2035 Cardioid Condenser Microphone

I can't find the size anywhere on the net.

In a previous topic, someone mentioned that the AT2020 has only a 1/2inch. This mic seems to be the same thing, but with a pad and rolloff. I am guessing it has the same size diaphragm, but I don't know.

Is having the roll-off and pad worth an additional $50?

Any help?