Do you use Tota Lights? - Page 2 at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Photon Management

Photon Management
Shine an ever-loving light on you.


Reply
 
Thread Tools Search this Thread
Old January 17th, 2012, 01:37 PM   #16
Major Player
 
Join Date: Feb 2009
Location: Philadelphia, pa
Posts: 705
Re: Do you use Tota Lights?

Is it possible / safe to put a dimmer on the tota's?
Kevin Lewis is offline   Reply With Quote
Old January 18th, 2012, 07:39 AM   #17
Tourist
 
Join Date: Feb 2010
Location: Fargo, ND
Posts: 3
Re: Do you use Tota Lights?

It is possible to use a suitably sized dimmer with a Tota-light.
Like all incandescent bulbs they will shift towards the warm side in color temperature as they are dimmed. Sometimes this shift is used for effect (art) and sometimes it is corrected for with various densities of CTB gel.
Using lower wattage bulbs, Neutral Density or diffusion gels and adjusting the distance to subject will change the output without changing the color temperature. Often combinations of these techniques are used.

Don Bachmeier
Lighting Applications Spec.
Lowel Light
Don Bachmeier is offline   Reply With Quote
Old January 19th, 2012, 07:26 PM   #18
Major Player
 
Join Date: Feb 2009
Location: Philadelphia, pa
Posts: 705
Re: Do you use Tota Lights?

Don, as far as the color shift is concerned, can this be resolved by simply doing a manual white balance when changing to a dimmer. Also, when you say a "suitable sized" dimmer, is there a certain specs that I should be looking for?
Kevin Lewis is offline   Reply With Quote
Old January 21st, 2012, 03:34 AM   #19
Wrangler
 
Join Date: Jan 2002
Location: Los Angeles, CA
Posts: 6,781
Re: Do you use Tota Lights?

Quote:
Originally Posted by Kevin Lewis View Post
Don, as far as the color shift is concerned, can this be resolved by simply doing a manual white balance when changing to a dimmer.
Only relevant if the sole light source in the frame is that one unit, which is rarely the case. White balancing to the warmer temperature will cause another light sources to shift cooler.

Quote:
Also, when you say a "suitable sized" dimmer, is there a certain specs that I should be looking for?
Always greater amperage than the unit you intend to power. The quickie rule of thumb with 110v AC is to divide the wattage by 100 to get amps (that rounding down gives a safety factor); so a 1000 watt globe will pull 10 amps. One inexpensive solution is the Harbor Freight router speed control, which costs a mere $20 and can handle 15 amps. I've had a few go bad on me but generally they get the job done and you can't beat the price.
__________________
Charles Papert
www.charlespapert.com
Charles Papert is offline   Reply With Quote
Old January 21st, 2012, 09:06 AM   #20
Inner Circle
 
Join Date: Jan 2004
Location: Boca Raton, FL
Posts: 2,979
Re: Do you use Tota Lights?

I have 4 of the Harbor Freight speed controls. They were great for a while but then one went bad and I'm finding some lamps start buzzing when dimmed much below 90%. One of them is a Tota with a 500w halogen. It may be related to the age of the lamp and I don't know if a proper dimmer will operate better. I also had noise in my audio from those dimmer when I joined two XLR cables together. The metal XLR connectors were picking up the interference.
Why am I getting this interference in audio from dimmer?

I didn't get a chance to try the remedy so I don't know for sure if was the Harbor Freight speed control as a dimmer.
Les Wilson is offline   Reply With Quote
Old January 21st, 2012, 12:21 PM   #21
Wrangler
 
Join Date: Jan 2002
Location: Los Angeles, CA
Posts: 6,781
Re: Do you use Tota Lights?

I've heard all of those complaints (they do go bad, but as usual, you get what you pay for). Buzzing is often a function of the dimmer quality.

A better way is to use a quality household rotary dimmer mounted in a housing or even better yet, a big ol' variac. But I know peeps around here like the cheaper stuff, and these will run much more money than the Harbor Freight.
__________________
Charles Papert
www.charlespapert.com
Charles Papert is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Photon Management

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:08 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network