How much light is needed?

[Exhale]

Hey Guys,

I have been doing some experiments with two studio flashes (360w) to illuminate face captures. However, I have been only able to capture at 1/8 shutter speed, with an ISO of 200 and an aperture of 13 (to minimize DOF). My question is, how are some capturing at 1/10,000?! Even with 1/1000 I have a close to black image, how much light is actually being fired into to the scene for illumination? Any insight would be greatly appreciated. 

Thanks,
Corey

EMULAT3D

What settings did you do for 360 watts flashes?  Iso100, aperture13, 0,5sec. shutter speed ?

[EMULAT3D]

Hey Exhale,

Originally I was using Iso 200, Aperture 13 and a shutter of 1/8th, but now I have added two additional flashes (total of 4) and have been testing with Iso 100, Aperture 16 and shutter 1/5th. I haven't been doing anything with motion, just trying to get consistently sharp photos.

Thanks!

[Exhale]

EMULAT3D Thanks for your reply,

So now you have 4 x 360watts flashes. I believe good upgrade
Any other light source ? Led , projectors or etc. ?
By the way, how many cameras do you have?

Thanks

[EMULAT3D]

Right now we have 20 Canon T3's, arranged in a semi-circle (haven't found a good layout for 360 captures with such few cameras). As for other light sources we have a few 60w umbrellas around the capture area providing some additional ambient light. No projectors or LED's...yet. 

[Exhale]

The semi-circle is good. Will you upgrade the number of T3s later on?
Did you have any problem to connect cameras to pc? How do you connect, single pc?
I have some problems with my long USB cables :=)