How Understanding the Inverse Square Law Improves Your Lighting Skills

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What is 'Falloff'? What does the inverse square law have to do with photography?
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Опубликовано:

14 окт 2024

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Комментарии : 70

@darlingtoncd 4 года назад

For anyone not understanding the inverse square law, this is probably the best video explaining it...well done.

@catcatcatcatcatcatcatcatcatca 4 года назад

Should have probably mentioned how the size of lightsource also changes with distance: so if you want the same kind of light as small softbox close to subject, but with less fall-off, you will need a huge-ass softbox futher away. This means there are actually two factors that share the property of inverse square-law, effective size of lightsource and intensity. Which means whenever you change distance to fix one effect, you need to take to account how the other changes as well.

@garbygarb31 4 года назад

I scrolled down to say this. Also the size of the light source in relation to the subject affects the sharpness of the shadows as well.

@osalvadordafoto 2 года назад

THANKS! no one says that

@sunilraj7692 4 года назад

Great explanation!

@frankmcleod4617 2 года назад

Well done. Understood ISL completely (almost) at this demo's end.

@DrKjjj 4 года назад

Good one ZY

@procopencocorneliu5982 2 года назад

Thanks! The simplest explanation found!

@SergioGVasco 4 года назад

Your explaining was terrific in this one, very good indeed. The examples were very clear. Congratulations, great work, keep'em coming, please.

@SinaFarhat 4 года назад

Very well explained! :)

@ErikVanDenBiesen 4 года назад

Perfect explained

@b991228 Год назад

Your first important concern to work with is falloff or the inverse square law equation which means distance of light. The last four aspects of lighting that would be changes in lighting will result in linear change. These four changes would be power of light, ISO, aperture and exposure time. For the final fine tuning it’s best to try to really on doing these last four adjustments resulting in this linear change. Just remember that moving the distance of the lighting will make for big changes. Fooling with that first adjustment will mean your falloff potentially has drastically changed.

@andrewh2341 4 года назад

Very comprehensible 👍

@Javid1992 2 года назад

Beautiful explanation 👌🏽

@grad-dd9zj 4 года назад

very helpful and easy explained. thank you very much!!

@JohnChubbSr Год назад

Excellent presentation! The examples you show along with the formula really nail it down.

@SteveMasonCanada 4 года назад

One of the best explanations of the inverse square that I've seen. 4:18 really shows it well.

@cotton3349 2 года назад

I'm commenting twice because I love this video that much,..lol Thanks again

@luisvillamagua2675 3 года назад

very nice explanation, thanks!!!

@MattyBeavs 7 месяцев назад

this was great thanks for this breakdown! learned a lot :)

@oukserei 4 года назад

thanks a lot for your explanation!

@ZIONBOKEH 4 года назад

So technical knowledge. Made me feels like learning photography mathematically. It actually works. Thanks for sharing inverse square law.

@Rafaga777 4 года назад

Thanks for the explanation. As always clear, comprehensible and concise...

@vdglife 4 года назад

Fantastic explanation! This was really simple to follow and had great examples.

@DaleSheltonsPage 4 года назад

Nicely done

@gabrielestupinan 2 года назад

Great explanation!!! Awesome!

@Rampiesat 4 года назад

Thanks excellent explanation

@cotton3349 2 года назад

Great Video!! Nice & sImple, very helpful!!

@earthwalker4538 4 года назад

Excellent my friend! Always great content from you and I thank you very much for all you do for us!

@CraftsmanGreen 3 года назад

Perfect concise explanation , just what I needed to know. Many thanks

@adg8269 4 года назад

Amazing! Short but deep. The principles and the practice. One of my fav channels.

@dwntwndave Год назад

good stuff broski! thanks

@leejournals 4 года назад

Thanks for explaining! Well done 👍

@Tuscanytravel 4 года назад

A great video. Thank you

@cowboyyoga 4 года назад

Great video! Very understandable. Thank you! ))))

@victormultanen1981 4 года назад

thanks for great content!

@alice-14-k6b 3 года назад

Thank you!

@Glen.Danielsen 4 года назад

ZY, brother of calculation! This is helpful in practical ways, and fascinating! Thanks so much.

@Falcryx 4 года назад

This is really informative and useful, both for physics and photography! Thank you~ :D

@DavidJonesImages Год назад

Perfect thanks

@adreaminfocus Год назад

thank you - really helpful

@MarceloLangame 4 года назад

Thank you so much for this masterclass.

@tinman6182 3 года назад

This will help my videos thanks

@andilematomela2043 2 года назад

great video thank you

@daniel-godin 4 года назад

Very useful. I'm learning how to use artificial light and this explains things well. Thank you!

@iKeto_gal 4 года назад

Awesome explanation 👍🏻

@ChrisytinaaCoffee 4 года назад

You’re awesome. So thankful for you and you’re knowledge 🙏🏻

@pataspatas88 4 года назад

Nice one! Thanks.

@stephenreed7769 4 года назад

Good job 👍

@pinkace8221 3 года назад

very helpful!!!

@ianjoc00 4 года назад

Damn! This is was very helpful!

@divyalalraveendran1647 Год назад

Wow. i liked this video

@hathienantruong4148 4 года назад

Good stuff lad

@kerniuzas 4 года назад

Thanks for explaining. Although, I'm still struggling to understand one thing. At 1:39 you've defined your reference point as 1m = 100%. Why exactly 1 meter? What if the reference point was 1km or 1cm, would that make calculation not right ?

@jacobwarren1985 4 года назад

The reference point is dependent on the size of the light source. If the light source was very small 1 metre would be too far away as a reference point and the light fall-off would be very gradual, you might then have to use 1 millimetre away from the light source as a reference point.

@RomboutVersluijs Год назад

What i still dont get is why, say we take the 3m distance. To me the gray value doesnt look like its 11.11% compared to the first meter where its 100%

@rudranroy2109 4 года назад

Are you a student of physics ? Or, were you one ? You sound like one. Btw, love from India. And, as always, this is the best informative page for photography on youtube, and thanks to algorithms, it's the most underrated one. You pack informations within less than 1/4th time of what others would do. And also, what your name ?

@JorenDekker 4 года назад

So i've learnt math, lighting and videomaking in a few minutes!

@gelopsycho 4 года назад

salamat sirrr!!!! :D

@cobra350hp1 3 года назад

Do you understand that the inverse square law of light would prove that they never went to the Moon using this law would say that the surface of the Moon would have been so bright they could not have walked on it?

@jayz1987 4 года назад

👍🔥

@cmichaelanthonyimages2197 11 месяцев назад

ISL...light intensity is equal to its distance square.

@osalvadordafoto 2 года назад

This law doesn't hold up if you do the math in inches or miles. What no one says is that you have to consider the size of the light source as well. I believe we all agree that a 5 foot octabox will behave very differently from a spot regardless of how far away it is. Explain something to me... how did you do the math in meters and most youtubers do it in feet and you all got the same result?