I have a single Inon D-2000 type 4 strobe that I use with my Sony RX-100 II / Nauticam housing. I only shoot wide angle (wide angle lens or fisheye lens) of mostly wrecks and large animals. I am looking into getting a second Inon strobe. My question is should I get a D-2000 (to match what I have (GN 17 w/ diffuser)) or get a Z-240 (GN 21 w/ diffuser)?
The cost difference isn't that great but I'm just not sure if it will create undesired effects or have no benefit at all.