I'm looking at the same cameras also and see the same models because I need to buy 3d camera.
My HDW5442TM-AS is EOL
So I'm trying to select between HDW5442TM-ASE , HDW5442T-ZE and HFW5442T-ASE-NI.
HFW5442T-ASE-NI has max aperture F1.0 without IR.
I'm sure that HDW5442T-ZE is better then...