5K Fresnel at DVinfo.net

Michael Best · August 15th, 2006, 08:34 AM

Is anybody using one of these, if so, at around 40 amps how are you powering it? Thanks

Don Donatello · August 15th, 2006, 11:06 AM

usually with a generator ... or using power on a sound stage ...
or if allowed/legal a tie in to the electrical main box - then sub boxes with circuits that can handle 40amps ...
note: that it's all special electrical cable not the kind you get from home depot ...

Michael Best · August 15th, 2006, 11:25 AM

good info thanks, I suppose there's no way to say 'couple' two 20 amp sockets on a generator?

Don Donatello · August 15th, 2006, 11:48 AM

i know it's been done ( depends on type generator) but don't know the how ...

call a lighting/generator rental house and ask them or ask a local gaffer in your area for the details ...

i've know that some gaffers will hook into a 220v electric dryer/stove plugs in houses with speacial plug-cable ...

Bill Hamell · August 15th, 2006, 04:34 PM

Just an FYI Mole makes an adapter to use a 2k lamp in the 5k light.
#1921 5KW to 2KW Socket Adapter

If power availability prevents using a 5k lamp you can still use the light. Around $75 US.

Bill

Jacques Mersereau · August 16th, 2006, 10:24 AM

We have 5K dimmers and 8 gauge wire with the big stage pin connectors.

Charles Hohenshilt · September 3rd, 2006, 11:09 AM

I learned and tested something that would allow you to use 20amps (actually 16.6 amps) instead of 50amps (41.5)

A Arri 2K Fresnel will give you the same stop as a Mole Richardson 5k Fresnel.
The lens and reflector of the Arri are engineered to transmit the most amount of light from the lamp.

Or, I bet you could just use a 1200 HMI Par light instead of the 5K. Just add some CTO to make it 3200K. 1200 uses even less amps than a 2K tungsten Fresnel.

Ralph Keyser · September 7th, 2006, 10:17 AM

Yeah, pay attention to that amp figure that Charles mentioned for the 5K. Trying to power a 5K off of two 20 amp circuits will not work well :)

Around here, the common termination on a 5KW unit is a 60amp Bates cable.

August 15th, 2006, 04:34 PM	#5
Bill Hamell Major Player Join Date: Aug 2004 Location: Mystic Ct. Posts: 477	Just an FYI Mole makes an adapter to use a 2k lamp in the 5k light. #1921 5KW to 2KW Socket Adapter If power availability prevents using a 5k lamp you can still use the light. Around $75 US. Bill __________________ Cinematographers Bring Shadow To Light

August 16th, 2006, 10:24 AM	#6
Jacques Mersereau Trustee Join Date: Mar 2002 Location: Ann Arbor, MI Posts: 1,334	We have 5K dimmers and 8 gauge wire with the big stage pin connectors. __________________ Jacques Mersereau University of Michigan-Video Studio Manager

September 3rd, 2006, 11:09 AM	#7
Charles Hohenshilt New Boot Join Date: Apr 2006 Location: Manalapan, NJ 07726 Posts: 17	I learned and tested something that would allow you to use 20amps (actually 16.6 amps) instead of 50amps (41.5) A Arri 2K Fresnel will give you the same stop as a Mole Richardson 5k Fresnel. The lens and reflector of the Arri are engineered to transmit the most amount of light from the lamp. Or, I bet you could just use a 1200 HMI Par light instead of the 5K. Just add some CTO to make it 3200K. 1200 uses even less amps than a 2K tungsten Fresnel. __________________ To capture an image, any camera needs a certain amount of illumination for proper exposure. Then start taking light away.

August 15th, 2006, 08:34 AM	#1
Michael Best Major Player Join Date: Apr 2004 Location: Oceanside Harbor, CA Posts: 446	5K Fresnel Is anybody using one of these, if so, at around 40 amps how are you powering it? Thanks

August 15th, 2006, 11:06 AM	#2
Don Donatello Hawaiian Shirt Mogul Join Date: Nov 2001 Location: northern cailfornia Posts: 1,261	usually with a generator ... or using power on a sound stage ... or if allowed/legal a tie in to the electrical main box - then sub boxes with circuits that can handle 40amps ... note: that it's all special electrical cable not the kind you get from home depot ...

August 15th, 2006, 11:25 AM	#3
Michael Best Major Player Join Date: Apr 2004 Location: Oceanside Harbor, CA Posts: 446	good info thanks, I suppose there's no way to say 'couple' two 20 amp sockets on a generator?

August 15th, 2006, 11:48 AM	#4
Don Donatello Hawaiian Shirt Mogul Join Date: Nov 2001 Location: northern cailfornia Posts: 1,261	i know it's been done ( depends on type generator) but don't know the how ... call a lighting/generator rental house and ask them or ask a local gaffer in your area for the details ... i've know that some gaffers will hook into a 220v electric dryer/stove plugs in houses with speacial plug-cable ...

September 7th, 2006, 10:17 AM	#8
Ralph Keyser Major Player Join Date: Aug 2002 Location: Albuquerque, New Mexico USA Posts: 287	Yeah, pay attention to that amp figure that Charles mentioned for the 5K. Trying to power a 5K off of two 20 amp circuits will not work well :) Around here, the common termination on a 5KW unit is a 60amp Bates cable.