Alec Baldwin -- SHOVES PHOTOG ... Smacks Camera

The Alec Baldwin meltdown continues -- the actor just shoved another photographer ... and then smacked a camera out of the guy's hand and once again, it was all caught on tape.

The footage begins near Alec's Manhattan apartment (after Alec's confrontation with a local news reporter) ... and shows Alec pushing a photog.

After the photog collects himself, Alec lunges back at him and smacks the camera out of his hand ... knocking it to the ground.

The photog goes back to Alec and says, "You shoved me into a car."Alec responds, "You tried to hit me with a camera."

Photog: "I didn't try to hit you with a camera."

Alec then tells the guy, "You take a walk ... you don't wanna get hurt, do ya?"