FWIW, I played around with both strobes and "continuous lighting" (really just my desk lamp) for some static compositions. Found I really needed some continuous lighting for composing, especially if it's a macro type shot on my 90mm f/8 since it's dark to begin with and macro shots seem like they can end up pretty dim. I also shot with flashes for similar subjects with my 150mm and found I need to practice more on that but it was close enough to use my DSLR for guessing my flash power.