CTO Gel Tungsten White Balance: Color Correction Gels Explained
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- čas přidán 20. 08. 2020
- Are you shooting video with tungsten lights but need to convert daylight bulbs to tungsten? Do you just want to warm up a few daylight bulbs in your shot? Then you'll want to use CTO gel to tungsten white balance.
We'll show you what all the different sheets of CTO (color temperature orange) mean and how to use them.
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Lee Filters Lighting Pack Daylight to Tungsten CTO
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Lee Filters Full CTO 24x21" Gel Sheet
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Rosco Color Correction Kit for Photographers and Filmmakers, 12”x12”
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Rosco Cinegel Roscosun CTO, 20” x 24“ Gel Sheet
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Very good explained! Thx a lot! I liked espeacially the part, where you described the change of Kelvin when using CTO-Gels. I was looking for that so long and did´t find anything.
-> Full CTO converts 5000k to 2800k
-> 1/2 CTO converts 5000k to 3200k
-> 1/4 CTO converts 5000k to 4000k
-> 1/8 CTO converts 5000k to 4500k
Thank you and glad it was helpful. And it took some work to dig up the exact kelvin changes in the gel manufactures data sheets. But nice to have it in one place.
thank you for the detailed explaination, love the analogy and the demos for all cto!
You're welcome, glad it was helpful. What you shooting with CTO? Anything fun? Do tell.
This is amazing breakdown. You made it so easy to grasp it all. Thank you
You are very welcome and hope it was helpful.
Whoaaa I just needed this info and the video just came out 😍
Absolutely fantastic break down, thank you!
You are very welcome and glad it was helpful.
Thank you very much. I bought a Lee Filters, Lighting pack with loads of gels in there to experiment with, but really wanted to understand some of the basic theory behind it as well, which you covered very nicely. Your starting analogy with the cutlery was very helpful as well for the filters. Good stuff.
Glad it was helpful!
very helpful for me, thanks a lot
Wow thank you…. This is an amazing video…, you made it so simple and easy thank you
You are very welcome, glad it was helpful.
Amazing!!! Thank you
Excellent video, thank you!
Glad it was helpful!
Thank you for the good explanation.
This is exactly what I was looking for, my flash has 5600k and my film 3200K. Then this should fit now :)
Awesome and glad it was helpful.
THANK YOU!
Great Break down thank you! New sub
Glad you liked it. I'm sure you deal with household bulbs of various color temperatures in homes you sell.
Thanks well done...
Vers interesting, thanks !
Great content 😊👍
Glad you liked it and that it's helpful. Love the colors in your videos by the way. The dancer near the ocean, the color's are stunning.
What are the odds that my landscaper just installed a rock wall with built-in LEDs that are too high on the Kelvin scale for my liking, so I ordered the LEE CTO Kit and was looking for a video about this - and you happened to just post a video about it? Wild. Hopefully this looks good, but I think it will.
Awesome. You've probably already thought of this but I would suggest putting the different levels of CTO on maybe two lights side by side, then the next level of CTO on the next two and so on so you can see which one you like better to your eye.
Your hens are gorgeous by the way. They devastated that watermelon.
thank u
thanks for spoon-feeding this to me ❤️
You are very welcome. What are you shooting using CTO? Do tell.
Main reason why I watch this was to figure out of a full spectrum 5600K could be gelled to a tungsten :)
@@PullMyFocusmostly indoor shoots with varying light color temperature
@@kes_____ Got it. You may know this already but what we do is film a white card "turned" to the direction of the lights. For instance, if I'm shooting handheld, following a person setup the dining room in a restaurant. She turns and faces the tungsten lights at the bar, then turns and faces daylight in the windows. I'll get a shot of the card facing the camera, then turned to the bar and windows. Gives the editor what they need to adjust as a backup.
@@PullMyFocus thanks bud! Do you think theres a massive difference in using grey card instead of white?
great stuff thanks! have a godox vl300 (got it on the 400 dollar sale -i love it) and ive been using a lantern with it. . its straight 5600k, so if I want to hit it with a full CTO gel, I mean how would I do that with the lantern on?? I usually clip gels across reflectors but now I have this lantern with no reflector. I mean, it doesnt sound safe to drop the gel almost directly across the cob without catching the house on fire. thanks in advance for any help, and keep on keeping on.
The gels from Lee and Rosco are designed for the heat of tungsten lights and placed on the barn doors or the fresnel. In your case you need to make a cylinder or ball with the gel around but not touching the LEDs.
@@PullMyFocus oh thanks so much! yeah I figured they'd be ok if not draped across the COB. I dont have a 1200 or anything ha ha. thanks for the reply
I have a question would let light gels melt if you put them on tungsten work lights from Home Depot? And what are you CTB gels To make it look like daylight?
No they'll be fine. Most gels from LEE and Rosco are high temp, meant for use on high temperature lights used on film sets. We're talking 1000 watt lights and up. So crazy hot.
Do double check though because both companies and others make LED specific gels and some gels that are not meant for high temp.
CTB, just do the math in reverse. Full CTB will convert a tungsten bulb to daylight. But it eats up 2 stops of light.
Pull My Focus I have the Rosco Color Effects kit it’s says And all purpose range of popular lighting filters that provide bright vibrant colors for use in Leibowitz the article stages and photographic studios
@@BadKarma714 Yes, those are heat resistant gels. They will deteriorate over time if too close to hot lights, especially if the light is spotted. There are no CTO or CTB gels in that kit. They're just special effect gels but good, popular ones.
Informative and educational! Is it true the sunlight mentioned at around 9:48 is actually a LED light, not real sunlight? I am a bit confused by some other video where they can turn ambient light into blue or orange by mismatch the white balance setting on the camera intentionally.
Yes that was an LED par bulb with 1/2 CTO gel on it. The camera white balance is set to daylight (5500k).
If I set my camera white balance to tungsten, 3200k, then the daylight from the window would be blue, and that LED with 1/2 CTO would be very orange.
To keep it simple, always think of just two camera white balance settings, Daylight or Tungsten. If I'm set to Daylight, then daylight bulbs and the daylight from the window will be white. Any light with a lower kelvin temperature will be yellow and then orange.
@@PullMyFocus Thank you so much! This is the best education I've got out of all the CZcams videos I've browsed.
If I am using a CTO for making the subject warm, this case a beverage bottle, What should my white balance be? or would it be a creative choice?
5500k, daylight. That will be your white and anylight with full CTO will be at around 3000 k.
@@FrankDellario Thanks mate. I decided to make the whole thing warm in camera, around 7000k
Would you know which CTO gel would convert a 4000k LED to 2000k? (would it be 2 1/4’s on top of eachother..?) [confused]
Yes, two 1/4's or easier, one sheet 1/2 CTO. And always, shoot tests.
@@PullMyFocus The thing is I am seeing that different sellers have different ‘original source’ values and the math comes out different for all of them and it becomes confusing when i simply need 4000k converted to 2000k (accurately)
For example one seller states:
Full CTO converts 5500 to 2900
1/2 CTO converts 5500 to 3800
1/4 CTO converts 5500 to 4500
1/8 CTO converts 5500 to 4900
another says
Full CTO converts 5700 to 3000
1/2 CTO converts 5700 to 3500
1/4 CTO converts 5700 to 4200
1/8 1/2 CTO converts 5700 to 5000
and a comment on here says:
Full CTO converts 5000 to 2800
1/2 CTO converts 5000 to 3200
1/4 CTO converts 5000 to 4000
1/8 CTO converts 5000 to 4500
I should look at these as just estimates…and adjust based on the look in the shots?
@@electronicfellows2113 Correct, those are just estimates. This is not an exact science as so many factors come into play. What matters is are you getting the look that you want with the camera you're using.
I would stick to the two main gel manufactures, Lee and Roscoe. They are staples in the biz and make good products.
Don't sweat it too much and shoot tests. You may need a 1/4 and 1/8 sheet to get what you want vs 1/2.
So, i have an idea for a shoot where i'll be shooting a subject indoors with a strobe that is gelled with a CTO gel to give the impression of tungsten light. I will also be shooting a second strobe through the window of the room to give the effect of a street lamp, i will be gelling this with a stronger CTO gel. I shoot mainly with film and the only tungsten balanced film on the market is cinestill 800t which gives red halation's to light sources which im not a fan of. If i was to shoot a daylight balanced film, would i have to put a colour correcting filter onto my lens, if so, which one? sorry if i haven't explained that very well, thanks
You would need a CTO filter on the lens to convert the daylight film stock to tungsten. I would assume full CTO but you may need to check what the film manufacturer recommends.
@@PullMyFocus Thanks so much. Would using the filter on my lens still give me the orange glow from the tungsten gels on the strobes or would it just bring them up to daylight temperature?
@@xesse1 What is the color temp of your strobes? If they're tungsten, then they will be tungsten with the gel, but if they're daylight, then full CTO will just make it white light.
Note, you could shoot daylight balanced film stock, and use half CTO on the strobe and full CTO on the light out the window. You may need to shoot tests but since you're shooting film, you're kinda forced to have to shoot the whole roll.
Remember, all you're doing is shifting what is white light to the camera (film stock) along the kelvin scale. Anything below will get more orange, anything above, more blue.
CTO will move your light down the scale, CTB up the scale.
@@xesse1 Or you could shoot tests. Looks like you're shooting sheet film (just checked your channel). Nothing like the sound of a film camera shutter "clicking."
@@PullMyFocus The colour temperature of the strobe is 5600k. Ohh I think I understand, so using a full strength CTO gel on my daylight strobe would make it white light, so does that me for it to be considered a tungsten temperature I would have to use 2 full strength CTO gels?
he has a wig
Who has a wig? I don't but maybe I needed a haircut.