My first attempt at the pool with models, was with my wife, so that I could experiment to see what was needed to accomplish decent pool shots with models.
I wanted a nice very large soft light source so I used a 3 x 6 foot lastolite panel with softbox material over the frame and the frame was positioned about 3-4 feet from the pool from a high angle aimed down towards the pool. I then positioned 2 Profoto strobe heads behind the panel each on their own separate pack at max power 2400 watts per head, so I was putting out 4800 watts. I then used a Profoto ProB 1200 watt battery pack with a 22inch beauty dish and grid for the rim/hair light set to half power so 600 watts.
I was shooting at 200 F-11 ISO 100, which was not enough so I dropped down to F-8 and I still ended up bumping the exposure a little in Lightroom for the main light source.
Lessons learned and what I'll be trying this Tuesday
--I'm going to go with a 2 x 3 softbox with a silver lining and remove the front layer of diffusion only leave the small inner layer of diffusion, using a Profoto V-Twin Head that will be plugged into two 2400 watt packs giving me the option of 4800 watts and moving the softbox a lot lower about a half foot away from the pool edge. If this does not give me the power I want I will switch the softbox out for a 22 inch silver beauty dish.
I'm also going to add a 600-1000 watt Arri hot light just to light up the pool for working and composing images, but this should not have an effect on the exposure, at least that's my intent.
The rim/hair light will remain about the same, I think I had good power on that.
**Note all safety precautions were taken, 25lb sandbags on EVERTHING, used only GFI outlets and no cords or packs were on the ground.
Mark






