Hard vs Bounce vs Diffusion vs Book Light

By Will Mosley / Sunday, December 13, 2020

[hwm_yt_autoplay id=https://youtu.be/YPS9L3cJa5s]

Ever wonder about light fall off, stops of light loss and needed a good example. Take a look at this.

Transcript

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[Applause]

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good morning hope everyone is doing

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well looking to just do i don’t know

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a couple of very simple

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talking heads in the morning um

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nothing fancy kind of really just

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following the same format

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i’ve been dealing where as long as i

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talk for five to 10 minutes a day

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so i’ve been looking a bit

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more at bounce

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and diffusion and the combination of two

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right now we’re actually using both

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were bouncing the light and coming and

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diffusing the light and i

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realized i was wondering that because it

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does

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matter i was like you know why not just

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bounce the light because balancing

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actually

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is very it doesn’t take up as much space

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if if that makes sense well not always

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but you can typically shine a light

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at a wall and every wall is white so

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technically you can balance it

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and the light can be you put the light

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down here bounces at the wall

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and then it bounces back to the subject

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and diffuses it

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and that works

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but what i didn’t realize is how

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many stops of light that you lose by

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doing that

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versus diffusion you lose roughly

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three stops of light so okay

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for instance if i were to shine a light

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directly at me

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uh let’s just take this light in general

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take it out

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and on diffusion if i were to shine it

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right at me

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it’s gonna be bright right

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that’s how that would look it’s a hard

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light hitting me

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but if i were to reverse it let’s just

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do this real quick

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and shine it let’s pull this over here

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and shine it at the wall and then it

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bounces back to me

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i’m actually losing three stops of that

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original

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hard light that would have been hitting

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me

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now the other thing that you can do with

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the light so if you have a light here

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and then you say put a piece of

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diffusion over it and point it

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directly at the subject me you’re only

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actually losing

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one stop of light roughly depending on

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how far it is from you

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one stop of light versus it died

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i have another one we’ll just use that

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one one stop of light

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versus what that hard light would be

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which is actually matters a lot when

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you’re working with

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a limited amount of lights now the

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second or third thing that you could do

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to get the best

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lightest light but it also means the

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most amount of drop off of those stop

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supply

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you’re losing you’re losing light as

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you’re making the light prettier if this

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makes sense

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okay so this is where i’m sitting or

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where i was just sitting

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and this is what’s being used to

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supply that light what’s happening is is

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we have two

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hard source lights that are

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bouncing this is just a five and one

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um the thing that comes with the five

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and one and they’re attached to boom

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poles clipped up

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that’s bouncing that’s already creating

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pretty good light but from the bounce of

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here we’re losing about three stops of

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light already

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that’s then going through this second

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layer

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which is diffusion which then comes over

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here

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uh to my seat hope that makes sense um

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but you can see if you look closely at

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like my cheeks or my eyes

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uh but the difference

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what i’m gonna do very quickly like very

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very quickly it’s just the end of the

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video

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is to show you what all that would look

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like

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without with i’m not going to show you

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hard light well

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whatever i’ll show you hard light

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hitting me then i’ll show you the

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balance and then i’ll show you with both

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and you can kind of

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make your own judgment call same shot

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i’ll probably just adjust the iso so

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it’s not blown out

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hard light as you can see very

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very hard look at my nose

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and we of course could stop us down too

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but yeah you can see how hard that is

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now we’re going to go ahead and balance

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it

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um so not bad if you look you can kind

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of see

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this would be this would still work this

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would be just fine

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for me in my mind and then this is with

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diffusion

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notice that for the hard light i had to

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pull us down to iso 100

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for the bounce i pulled us up to iso 200

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and then for uh this right here i pulled

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us up to iso 400

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so that’s pretty much the whole point

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and pull

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which makes sense about everything that

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i said in the beginning about

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the amount of light loss so we pretty

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much lost four stops of light

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when we did this whole thing um oh the

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only thing that i didn’t do

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was light straight through the diffusion

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i’m not going to get back up and do that

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but that would have looked

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just fine too hope you guys enjoyed this

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one um

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hope you learned something and i’ll see

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you tomorrow

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peace out