The Fit diopters are of intermediate strength and easy to use...
... just to add more to the mix!
Fit +8D (equivalent to Subsee +5D) with step-up adaptor:
Pygmy seahorse, Lembeh Strait, 105mm + 1.5x T/C + Fit pro +8D
I like the combination of a teleconverter and the option of greater magnification with the wet diopter. I think it's a good idea to set up for supermacro and not to switch between 1:1 and supermacro on the same dive, although the macro lens and the +8D don't change the setup and mindset too much. I do believe in planning the shot and diving the plan, if possible. My planned shots are definitely better than my opportunistic efforts...
... I really wouldn't start with a +10D Subsee: it's too big a step, too different a technique and the learning curve is very steep.
- nudibranco likes this