Hi Guys,
I've been asked to do an UW fashion shoot for a local magazine, i've done topside fashion work but never UW. I've looked over some past threads with good pointers but have a couple questions.
What focal lengths do people prefer? I know UW closer and wider is better, but in fashion, normal lenses are preferred. I'm torn between my 17-55mm or 11-16mm (on DX). I'm looking at a 20'x20' backdrop and at 11mm i can only be about 6 or 7 feet away to fill the frame w the backdrop. At 16 or 17mm i get a few more feet separation.
Do people prefer to light from above or UW? I've considered using an umbrella on a UW strobe attached beneath a surface float but fear for the backscatter, even if well separated from the camera (have a 10' sync cable). If i setup topside, I'd try an UW strobe on a float to optically trigger the topside strobes. I have plenty of strobes, 5 UW and 4 topside, but no studio strobes or pw's to work with. I'm a little worried about triggering optically in daylight. (I may try to splice an old hotshoe cable to to an UW sync cable to fire my nikon SU-800 with radiopoppers on my topside nikon strobes)
What about directing the model. What's the best way for them to dive down, head first, then pose or feet first using hands to push up, then down, like they teach in lifeguarding? Any specific techniques for getting the flowing material & hair to work well?
Anything else i need to take into consideration? i am getting the pool professionally cleaned beforehand. Thanx guys, i really appreciate any help. Cheers,
Chris
Hi Chris,
I'll try to answer some of these questions, and I'm sure James will add when he sees the post. I would caution you though to do some test shoots say ahead of time (I'll always be happy to fly to Bermuda to help
) if this is an important commercial gig. Maybe have the model (s) work briefly with you head of time to make sure they work well underwater. I think either of the lenses will work but with DX my choice would be the 11-16 or the Nikon 16mm. Tokina 10-17 at 17 end will work as well. The key point to instruct your model is to keep hands and feet in the same plane parallel to the image plane, and not extend hands or feet towards the camera, which will of course result in distortion. To start with I would use one strobe on the camera balanced with daylight; then add a strobe for fill either topside or underwater, but start simple, add complexity as you see your results.
Presently I use 2 topside studio strobes with a long arm on camera strobe(at lowest power for fill mostly). As far as how to trigger etc, I'd test to see what works ahead of time. I use a long synch cord to trigger topside strobes linked to Pocket Wizards. Underwater slave triggering works fine, but topside I have found slave triggering to be a little eratic.
You can add softboxes, I use them topside with snoots as well - I find it cumbersome for the underwater strobes, and have destroyed a few umbrellas underwater, but James likes to use them underwater. I prefer to just add diffussers to underwater strobes, like milk container plastic.
The best thing to teach the model is simply how to sink passively, no diving or anything. Simply have them practice a little hyperventilation, then exhale and even continue to exhale as they sink. This way they do not waste energy flailing about to stay down. Depending on the model, she may have 20-40 secs or so working time. Get them relaxed doing this first ,then begin gentle movement to allow garments hair etc to flow. Tell them to avoid conditioners etc in the hair that prevent soft gentle movement of the hair.
In addition to pool cleanliness, make sure pH is around 7.4 to avoid eye discomfort etc.
Best of luck,
Jeff