Matching Color with LED lights and the Sekonic C-800
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- Опубліковано 14 жов 2024
- Learn More: bit.ly/3fWqoqK
Follow along as we show you how to use the Sekonic C-800 to get the best match between different light sources. We will also discuss matching color temperatures as well as compensate for any green or magenta tints, unlocking the power of x,y, and discuss matching saturated Party Gel Effects between RGB LED’s or gelled light sources.
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In this video we are going to use the Sekonic C-800 to get the best match between different light sources. We will demonstrate how to match color temperatures as well as compensate for any green or magenta tints. We will unlock the power of x,y, and….we will also discuss matching saturated Party Gell Effects between RGB LED’s or gelled light sources.
Lets start with how to match lights using traditional gels.
On most shoots we simply want two light sources to have the same color temperature and no green or magenta tints. First we need to establish a target, or a light source we want to match.
The target is the desired color temperature you want a light to be.
If your light has a fixed color temperature, then we will get to the target color temperature using Gels, This is simple. Select the Filter Mode icon, and make sure the lighting filter is selected, denoted by the light icon.You can switch from lighting filters or camera filters simply by selecting the middle button. CCT, shows your correlated Color Temperature. LBi, Light Balance Index, is and index of how warm or cool a light is. LBlf, Light Balancing Light Filter is the filter or filters to use in order to adjust the Color temp, CCi Color Correction Index, an index of how green or magenta a light is and… CClf, a filter or combination of filters to eliminate any green or magenta tint a light might have. Now lets correct this tungsten balanced light to 5500k. Enter the target color temperature of 5500k. Take a reading of your light, and then see what the meter recommends.
CCT tells us the measured light’s color temperature.
LBi tells us the Mired shift, or how far off the light is from the target color temperature.
LBlf tells us how much CTO or CTB filtration we need, to get the measured value as close to the target as possible. CCi tells us how many points of correction are needed to correct for a green or magenta shift. Remember M means you will need to add magenta to correct for a green cast, and G means you will need to add green to correct for a magenta cast.
and CClf will tell us how much minus or plus green filtration is needed to get the lowest CCi possible. Please remember that the gels shown for CClf and LBlf need to all be used in combination with each other to match your light to the target color temperature.
A dashed line means that no correction is needed, or the correction is so minimal that no filter is available. Before we continue, here are some quick tips when it comes to matching lights.
Now if you have an adjustable or bi-color LED | the steps are even easier, and the C-800 unlike many of its counterparts can | continuously measure as you dial in your correction. To get the desired target color temperature...Simply hold the measure button down, while you adjust your lights color temperature, And continue to hold it down | while adjusting your lights green and magenta tint to achieve the lowest CCI as possible.
This is great when needing to match lights in locations you cannot control, or if you need to quickly dial in a saturated hue, such as a light with a party gel.
Measure each light, and save it to the meters memory. |Then recall the lights from memory in spectrum comparison mode.
If the two lights have a different spectral fingerprint they will never be able to achieve a perfect match on camera, | but the meter will get you as close as possible.
Some gaffers have even found that when looking to get extreme colors from LED lights that geling them in normal CCT mode yields more predictable results and better color rendering.
But always test on camera to be sure.
So in conclusion the Sekonic C-800 will enable you to get the best match between different light sources.
We have learned how to match color temperatures as well as compensate for any green or magenta tints.
We’ve unlocked the power of x,y, and….
discussed matching saturated Party Gell Effects between RGB LED’s and gelled light sources.
Now during your next production you will be able to get the best match between light sources with the Sekonic C-800.
#ColorTemperature #Cinematography #Gels
What a powerful tool! I need an upgrade!
Hi ~ I face a problem when I tried to match my lights.
3:17 Why have you selected C light as your target , the meter still suggest you put L249 on C light ? ( since it's the target , no gel should be needed ? )
Its still presuming that you want all your lights to have the same color temperature and relatively no green or magenta shift. So if the light you are balancing do has a green or magenta shift the meter is still going to have you correct that.
Lots of useful information.
So, curious…
I see i can get a light to meet my input color temp with this tool. But, can i simply use the tool to measure what the current light temp is reading?
For example - i walk into a space and cannot control the room’s light - so, i want my lights to match the room’s current light (that is i want my lights to match the ambient color ….)
Thanks😊
Yes the meter will alway measure the color temperature of the light being measured. Even when you input a color temperature that is only so the meter can tell you how to best correct the light source being measured.
@@SekonicGlobal - ah… this is great news. Thank you.
Is it possible to use the Comparison function (with "Delta" icon) with a value recalled from the memory? I would like to be able to store a number of x, y-CIE readings in memory, and then recall them later and use the Delta function to match my RGBW studio lights to them.
Sorry for the delay in catching this one. But know you cannot compare two memory functions in text mode.
Hello Sekonic, how many measurements does the C-800 take per second while holding the measure botton for continious measuring? Is continious measuring harmful for the unit?
Dear Fil, it depends on the brightness of the light. Being that it is a spectrophotometer it needs to make sure enough light is read in order to generate a accurate reading. The meter does this automatically depending on the lights brightness level. The fastest that it will read in ambient light conditions is 10x per second.
Hello Sekonic,
Thank you for your fast and precise answer. It helps a lot.
Regards
You very welcome, we are always here to help.
Hello. If I have some led dinamic fixture like gtd 2019 ,gtd1519, and some lamp fixtures like varylite 1000, clay paky 1500profile , varylite 3000 wash . So, Can I use this instrument c800 ( or c700) do the same colorbalance for cameras ?
Hello Bezumny,
Im not sure I understand the question. Are you trying to get all the lights to be consistent with themselves. Or are you trying to simply get the proper color temperature to input into your camera.
-Ab
@@SekonicGlobalfor this scenary :
yadi.sk/i/U-XvnhlzPhujaQ
Tv show
The meter will tell you what filtration you need to match the desired color temperature and tint you are going for.
We need your videos with Spanish subtitles!! I interested to buy the Sekonic c800 but I need more information in Spanish.
Is there any information I can find out for you?
In Multi light mode, say my target light is C, then A,B and D suggest me filtration to achieve similar to C. Will they give me the filtration to achieve C as it was measured as is or C as it was measured + the applied suggested correction to apply to C?
Hell Pascal
In the scenario you described A, B and D will give you the filtration needed to get as close to C as possible. The meter may recommend some correction to C as well if A, B and D are to far off in order to bring your target (C) Closer.
great video
Thank you!