Played with the Heinrich TTL in macro and WA situations. Nothing scientific and if anyone has ideas of ways to test just let me know. Equip: D200, Aquatica, Inon D2000ws x 2, Nikon 6mm lens and 12-24mm lens.
General impression:
Macro: TTL worked fairly well with manual setting and strobes set "eTTL" power dial set to "2.8/B". You can change SS or Ap and the strobes seem to compensate. If you use a Ap Priority it seems to set the SS to 1/15 as a default.
WA: Again shot mainly Manual, leaving camera settings stactic and adjusting strobe output. Seems best results were with the Power Dial set to "B/2.8". At times increasing the power 4-5 stops did not make a huge difference in photos.
Photo 1: SS125, f.20, ISO100, Manual
Photo 2: SS60, f.4, ISO100, Manual
Photo 3: SS15, f.9, ISO100 Ap Priority
Photo 4: SS125, f10, ISO100, AP Priority
Photo 5: SS/15, f14, ISO 100, AP Priority
Photo 6: SS/60, f4, ISO100, Manual
Photo 7: SS/50, f5.6, ISO100, Manual
Photo 8: SS/50, f5.6, ISO100, Manual
With the WA viz was about 20-30feet and the flash did a fairly good job of not increasing backscatter. One problem with WA: trying to shoot two Ling Cods, the light was ok used the internal Inon focus lights but everytime the photo just came out black. Turn 10 degrees put a white anem in the focus spot and get a good shot. Move back to the dark brown Ling Cod and again nothing.