Topics

1

Face and Body Scanning / Light bulbs

« on: September 26, 2014, 11:59:26 PM »

Hi all,

I'd like to set up a rig for facial scanning.  I'm working on the lighting.  I've purchased two of the LimoStudio kits from Amazon, each come with 2 white diffusing umbrellas. They came with 45 watt bulbs, which I think are a bit weak.

Does anyone use 105 Watt CFL bulbs?  Or are they too strong?

I was thinking of the Eiko 81180 .  Its 105Watt,  9600 lumens, Color temp is 5000K, and the CRI is 82.

SEEMS like the right bulb for the job. So, 4 of these, in 4 white diffusing umbrellas.  Sound about right?

thanks

2

Face and Body Scanning / Triggering and Camera Questions

« on: August 28, 2014, 07:35:19 AM »

Hi all,

I've done my share of reading the forum (there's too much to read!), but I'm still unclear on some things, and, hey, doesn't hurt to rethink past answers as technology progresses. 

I'd like to build a high quality rig for face / head scanning.

*  I was thinking of using Sony a7 (24 MP) or a7R (36 megapixel) mirrorless full frame cameras. Mainly because I hear they're lighter than DSLRs and just as good pixel quality.

* Simultaneous triggering has always been the mystery to me.  I've heard people talking about Pocketwizards as the way to go, then Esper Shuttercell.   Which is the best way?  I trust cables more, and I think its cheaper too.  Is that all I need? Shuttercell and some cables?

* I think 16 cameras is plenty for face/head capture, no? One Esper Shuttercell should do, right? I'm not quite sure how to hook things up. At the end is it just one cable with a button at the end you physically push to trigger all 16 cameras at once?

* I've heard that USB 3.0 triggering is also an option?  How do you trigger the cameras? Just put them into a USB hub, then what? The Breeze Systems software to trigger the USB?   I heard that USB doesn't really trigger all the cameras at the same instant, is that true?   

* If I went with Esper Shutter cell, I don't need the Breeze software, correct?  Just push the button and bang! Right?

* And finally: Lighting.  How many light umbrellas do I need? Any recommendations? The top 3 products on Amazon are the LimoStudio 600W system for $38.    Then the CowboyStudio for $59, and the FAncierstudio 2000 Watt for $174.

I've got a bunch more questions about Photoscan settings (go with default?) , etc, but I'll leave that for another day.

Thank you!