I'm looking at picking up a tg5, 5 o 4 to use when I'm DMing and can't take my larger rig. There seem to be some clear upgrades in the tg5 (when compared to the 4), buy what are the biggest differences (as far as UWP) in the 6 vs 5? TIA

The main difference for UW photo purposes is you don't need to use microscope mode for macro.  Microscope mode imposes some limitations compared to be able to use Av.  On the TG-6 you can use supermacro AF which basically means you can between shooting larger subjects and small subjects without changing modes.  Probably a good advantage for a camera you want to use when you cant use your full rig.

On 8/13/2024 at 5:24 PM, tkdcol said:

I'm looking at picking up a tg5, 5 o 4 to use when I'm DMing and can't take my larger rig. There seem to be some clear upgrades in the tg5 (when compared to the 4), buy what are the biggest differences (as far as UWP) in the 6 vs 5? TIA

None. Save money and get a tg6. Preferably used. 

Doesn't make much sense. If there's no difference how would I save money by getting a 6 rather than a 5?

I was reading a tg-6 vs tg-7 thread and responded here by mistake.