Using a Green Screen for Presentations

[@mikelesperance3964]

Lost. the audio between 3:04 and 4:04

[@SafetYA]

From 3:09 to 4:04 there is no audio

[@BernhardLuecke]

Such a wonderfull introduction into the issue. Lots of experienced based hints, thank you very much for this.

[@talerngngamkajornwiwat5635]

Hi Cat, I'm your big fan!! Your videos gave me ideas for presentation over Zoom. Good tips and tricks as usual!!!

[@EdwardKilner]

A very useful video. Nice green screen rig.

[@guillermofernandez305]

Thank you ! great vid and very easy on the eyes :)

[@realchristopherdiarmani]

I'm curious why you use in-ear monitors? What's the benefit, Cat?

[@monicaescobedo5982]

I agree, I think the unlisted video for the Q&A is interesting, I learn from other ppls' questions.

[@alexanderkandybin1319]

love your videos.....so much fun!!!

[@MrLexhoya]

Loved this session, again very useful content

[@kirillch]

I found that if have a plain wall behind and dark room, then even 2 rgb light bulbs are enough to create very good green or blue background. Also better to separate the lights so they do not fall directly on your head and shoulders. I lighten a wall from up and down, so fence off the upper light. Actually this can give any colour so clothes of any color are possible to put on.

[@videodemo4006]

I want it all😀 live in Norway, so hard to see live

[@Tommy_Boisvert]

Great video Cat! Good lighting is very important to have a good result with a green screen. Having two (or more) lights just for the green screen is better (i.e. not using the same light for the person and for the green screen). Using an app like "Green Screener" (iOS - not sure if it's available on Android) is useful to see different levels of green the same way the camera see it, to better adjust the lights so that the green is uniform. It helps to have a better background removal. A good distance between the person and the green screen also helps to reduce the green halo on the person. And obviously, no green shirt, sweater or accessories... to avoid having a transparent body. 😄

[@HigherEdutech]

This brings up a question for both you and Cat. I occasionally use a FlexDrop, in part because I can use it horizontally and get it further away from me. I _love_ the convenience of the Elgato, but I've waited because I wonder if it's too narrow to get far enough behind me to light well. Cat, how close do you have to have it behind you?

[@Tommy_Boisvert]

@@HigherEdutech The regular Elgato Green Screen (the one Cat is using) has a width of 58 inches. The Elgato Green Screen MT has a width of 78 inches. 20 inches is a big difference. If you go with the regular model (58 inches), you will have to put it directly behind you, very close to you. It makes it more difficult to have a good lighting, because there is almost no distance between you and the green screen. As it's very close, the probability to have green reflection on you (skin) is very high. If you move the green screen away from you, as soon as you will move you hands, they will be cut because they won't fit in the green area anymore. For someone who is on a chair, and don't move his hands a lot while speaking, it's not bad. I personally use the MT (20 inches larger), and I would never go with a smaller width, because it's already a challenge to have a good lighting, no green reflection and enough space to move my hands while I speak (without being cut). The green screen is about 2 feet behind me, and I use a Sony ZV-1. It all depends on the quality level you want to achieve. If it's only for occasional use, I think both options are very good, and the quality is very high. If the goal is to use a green screen very often, and you have a good camera and several lights, I would definitely recommend the larger model (MT). The biggest drawback is you have to mount it on the ceiling or on the wall. Another option is to purchase two (two regular model) and to put them side by side. It will be more expensive, and the challenge will be to eliminate the visual overlap between both green screen.

[@GgHh-tt9zc]

Very helpful thanks trillion

[@StevePotter]

Lots of great tips here, thanks!! I recently set up a big bolt of green fabric behind me (stretchy synthetic knit, so no wrinkles or creases after being folded for years) to use with a static background in Zoom. I was surprised at how well it works! You can auto detect the colour, or choose a spot on the cloth as a hint to the AI. It was nearly perfect around my hands and hair except for two problems: a crack of sunlight sneaked between my curtains and onto the sceen, as the sun moved...and when I drank water from my (OOPS!) green cup.

[@dhono1]

Thanks cat, i will try with my teams

[@ibrahimabdeltawab6418]

Amazing! Thanks so much

[@MrLexhoya]

Yeah, while watching I saw a few things that pop out. This is mostly not a showstopper, but when you prerecord your background (still or video), make sure your focus and focusdepth is the same as what you will be using. Otherwise it will be causing this separation. Obviously not when you put yourself in slides, but it is visible when in a 'virtual office'

[@AlbertMMartinWWCM]

Hi Cat, I really enjoy you sessions. Re the "Green Screen" I have both forms of "Green Screen" in my Studio. However, with the "Pull Up Version" I get what you have got a slight "green line around me" being caused by the lack of distance from me to the green screen. Also, in the background I think its good not to have a clock in the photo because it is locked to 20to2 as your is. Thanks for great content. Albert

[@rmanning4]

Thank you for your instructions on all the videos you share. I am curious to know what settings I would need to use for my DSLR Camera with a Teleprompter, I am thinking Video mode. Would this be correct? Thank you for your response. Bob

[@CatMulvihill]

There are a few things to consider, like whether your DSLR has a 'clean output', and you may need a capture card. I recommend searching KZbin for your specific camera + live stream set-up. Elgato has a list of cameras that could help: www.elgato.com/en/cam-link/camera-check

[@andrewsauter8749]

Great video thanks, you’re awesome! You mentioned presenting with a green screen in Teams/Zoom with a virtual camera? If you get a chance to do a video on how to do that with green screen in Teams that would be great. Thanks again

[@mu.makbarzadeh2831]

So nice!

[@elaxis2965]

I use the same Elgato as yours Cat, Im very happy with it. I used different fabrics previously but that was hard to get these in the way I wanted. Struggle with the lightning though when the daylight changes, maybe I need to buy more…

[@nathandavid3202]

Nice job

[@joemacdonald8530]

Sean Carroll does a separate video of Q&As following each of his lectures in his "The Biggest Ideas in the Universe" series. Works vey well.

[@realchristopherdiarmani]

Lighting green screens properly is not easy. I was always fascinated to watch the crew light green or blue screens when I worked in the film industry. Often it took longer than to light a 'regular' scene. As Cat notes, even lighting is the ultimate goal, and it's challenging even for professionals. For green screens they used 1/4 magenta on the backlight for the subject to help reduce green bounce.

[@HigherEdutech]

Oh, man that's a nice tip.

[@annoholics]

This is true but in a fixed studio environment where you always use the same setup and never change it afterwards it is indeed a one time job, and after that you can setup any background you want. This makes you also very flexible in the topics that you talk about. If you have e.g. two YT channels about two completely different subjects then you can easily switch between themed backgrounds. For YT it can be done better then live streaming because the correct keying software can make a huge difference. OBS studio can do a decent job but Premier Pro is better and After Effects is even much better then Premier Pro. For YT it does not matter how long the rendering takes but for real time streaming every frame has to be rendered in real time. Also the quality of the camera and the footage can make a huge difference. If you would film in 4K in 10bit color then it is more precies then using the footage of a Camlink because a Camlink cannot support 10 bit color. The lighting is also crucial. You have to light the subject separate from the greenscreen. So typically you end up with at least 5 lights: 2 lights for lighting the greenscreen evenly, 2 lights for the subject (key light and fill light) and a rim light that has some magenta in it. In an ideal situation you also would like to have plenty of space because you would like to separate the subject from the greenscreen. That is however not always possible in a small home studio. And as always, you have to do the work with the budget that you have. If you don't have the budget for a camera that can film in 4K 10bit color then you have to work with less. If you don't have the budget for 5 lights then you have to work with 2 lights, etc. One last thing. Elgato has the folding greenscreen, and it is awesome but they also have a slightly bigger greenscreen that you can hang on the ceiling. If you are really thinking about a home studio then that might even be the preferred option. It takes away another step in the proces because you don't have to take the greenscreen from the place where you store it. You can simply draw the greenscreen down and you are good to go. I have even seen people who use a motorized greenscreen that they hang on the ceiling and when they want to use it they can press a button on their stream deck.

[@juliadufault9223]

Hi Cat, great Information! I was wondering if the Green needs to be a certain tint or shade? I am running into the problems of what is behind me an I think a green screen would really help. I want to change the orientation of this whole Studio/Recording Studio around and the background when I do that would be awful! Some parts of my Art Studio are not as visually exciting as others. Thinking a giant canvas painted green?

[@CatMulvihill]

I know green screens remove almost any green, but I recommend you do a little more research so you don't waste any time or money!

[@SundeepVaish]

Hey Cat! Your videos are really useful. However, I have two queries. 1. How is your 'confidence monitor' connected? what output goes to it and how. 2. How are your earphones connected and what's outputted to them? Thanks

[@galic65]

Thanks

[@raspyni]

I learned a lot from this video - thanks, Cat. One important lesson: don't have a clock on a background scene. It's always 1:40 in your room! :)

[@Learn2Canoedotca]

Cloth seams don't really matter if: There is enough separation between the screen and you. (at least 1m) A dimmable violet led strip of about the same width as the green screen, located above and behind the presenter and not illuminating the screen will solve your hair problem. Best practice is that YOU are lit with the same colour, (another Canadian), temperature as the temperature of your background scene. ie: 5-6,000K (outside blue sky), ~3,000K living room. Also: dimmable led strips are cheap, ( $20 for 5m), cloth can cover floor to ceiling fo a 4m wide room for $80 and add another $40 and you can walk on water! Generally speaking video backgrounds are distracting unless a specific purpose is called for. (a virtual dance).

[@realchristopherdiarmani]

I've always thought it's hilarious that your clock doesn't work. :)

[@Axel-Live]

good video little lady

[@johnnybeirnetraining]

Hey Cat. Did you receive my email? Thanks