Name: 低照度下での撮影方法 (How to Shoot in Low Light)
Uploaded: 2021-01-14T07:47:16.000Z
Duration: 4 min 50 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

法助動詞 A2

Here are some tips for filming in low light,
when you don't have a camera that can see

基礎数量詞

Let's start simple. Using a wide aperture
will let in as much light as possible - the

smaller the number, the brighter the image.
The other big one is ISO, which is like putting

your camera on steroids: sure, you might get
better results, but it can go horribly wrong.

ISO digitally brightens the image, but it's
usually considered a last resort because the

higher the ISO is, the more grainy the image
will be.

So we just need to buy a camera that is better
at shooting in low light, right? Well, not

necessarily.
Shooting at a high ISO means that the camera

is super sensitive to any kind of small bit
of light.

Here shooting at ISO 6400 we have a decent
exposure on our subject, but that lamp in

the background is now super bright.
These christmas lights look very strange,

when we crank up the ISO, and here this bright
window is pretty distracting.

The point is that with high ISOs, any little
bit of light in our scene is gonna get amplified.

Instead, if we drop the ISO back down, then
the overall image will be too dark, but if

we then set up our own lights to compensate
for that, then suddenly our background lights

are looking a lot more natural.
Here are some more comparisons between using

the ISO to brighten the image compared to
using actual lights to brighten the image.

I used to think that I needed expensive fast
aperture lenses because they're better at

shooting in low light, which is true, but
what people often forget to mention is that

it's actually cheaper to just buy a couple
of cheap lights instead of paying way more

for lenses that let in slightly more light.
Getting yourself a couple of cheap fluorescent

lights can mean that you rarely go over ISO
400.

Plus, it gives you infinite possibilities
for controlling the light to get loads of

One example of that is if we want to shoot
a scene that takes place at night.

It's tempting to try the typical style of
lighting (from the front) but for a night

scene, I think this looks pretty unnatural.
It's clear that we've set up some lights.

I watched a few films with night scenes in
them, and I started to see a few trends.

They often use a lot of backlight, so you
can see what's going on, but there's still

plenty of darkness.
So JP our cinematographer placed our brightest

light behind the characters.
The other trend I saw from hollywood night

scenes was to use plenty of light on the background,
so we made that a priority, hiding lights

behind cars so we could see those buildings.
Here's the full lighting diagram, feel free

to hit pause if you're interested in the
extra details.

Okay, but what if there isn't enough time
to set up lights, or if we're not allowed

to set up lights at the location, for whatever
reason.

Well I think if we're struggling with shooting
in low light and we can't set up lights, the

first thing that I think should go through
our mind is: 'Do we really need to shoot

this scene right here, in the dark?'
Maybe there's a different room we can move

to where there's naturally brighter lights.
Maybe we can interview this person closer

to a window instead of in the dark corner..
Maybe we can move the whole shoot outdoors

and film in sunlight..
Even when you can't completely change location,

every room and every building will have a
premium spot where there's the most light-

you just might need to find it.
So in summary, we can use a higher ISO when it's

too dark, but there are many dodgy side effects.
Why not just add our own light instead, or

move somewhere with better natural light.
I definitely used to have the attitude of

blaming my camera for not being good enough
at shooting in low light, when to be honest

I was just too lazy to set up lights, too
lazy to find a better location.

And I think that's the difference: are we
passively accepting the problem, or are we

actively looking for a solution.
Filmmakers never have enough time, never have

enough money, and rarely have enough light
- so we might as well start learning to work

with what we already have.
My name's Simon Cade, this has been DSLRguide

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低照度下での撮影方法 (How to Shoot in Low Light)

struggle

decent

slightly

plenty