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foreign
or at least recycled background because
I was actually going to throw this stuff
in the bin but that looks that looks
pretty good I'm pleased with this hello
I'm Gavin hoey and you're watching
adoramatv brought to you by Adorama the
camera store that's got everything for
us photographers and this video is all
about these things flashes specifically
high speed sync flashing why you'd need
it in a small home studio now I've got a
bit of tidying up to do but whilst I'm
doing that click on the Bell button and
the Subscribe icon reverse that and
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adoramatv right let's get a background
sorted let's get a light set let's get a
model in let's get shooting
to help me out today I've got the
amazing Chloe Chloe's going to be the
model for this photo session and because
this is about high speed sync the first
thing we actually need is a flash this
is definitely a flash based thing and
the Flash I'm using as my key light my
main light is a Flashpoint explore 300.
we'll talk more about Flash as we go
through the next thing you need is
actually something to make out of focus
a background that has some texture to it
something that is going to look blurry
in this case I've made my own this is
just bits of torn up old background
paper that I've hung like this which I
think is going to look quite nice then
we need to work out well why why do you
need high speed sync how does it add
value to you in the studio and the
easiest way to do that is to actually
show you so I've got my flash already
set up for f8 let's take a photo at my
standard flash settings so that's 250th
of a second f8 at ISO 200 for my
particular camera setup okay Chloe Quick
Test photo here we go
and end result is lovely we've got great
light on Chloe we've got light on the
background and when we have a closer
look at the background although it's not
sharp it is clear what it is so in this
case I would like a blurrier background
and that's where high speed sync can
come to the rescue
so the lens I'm using for this has a
very fast aperture I've actually changed
my aperture and just my aperture to F
1.4 and the aperture affects the
blurriness of the background it should
go a lot more blurry however this isn't
going to be quite as simple as just that
let me show you why okay Chloe here we
go quick test photo
now when I take this picture at first
glance it looks okay it may be a little
bit on the bright side but the
background is blurry like I would want
it but actually what I've got here are
multiple lights at work I've got the
flashlight lighting Chloe but because
I'm using such a wide open aperture I'm
also recording the room lights at the
same time and I can show you that by
asking Chloe to do something just a
little bit strange Chloe can you wave
your hands really frantically for me
here we go
now when Chloe does that I get the
freezing power of flash but because we
have the room lights which are on for
the entire duration of my shutter being
open they're slightly blurred end result
is not the sharpest picture no control
over the lights and I can prove it even
more by turning the flash off and this
is a really important test I've turned
the flash off completely here is what
the camera is recording with my f 1.4
aperture here we go
and even without the flash firing I'm
actually getting quite a good exposure
on Chloe but remember this is like I
have no control over and it's a
different color of light than my flash
so when they're mixed together you might
have noticed a slightly strange Color
cast
there are two possible ways we could get
around this problem the first one is to
turn all of the room lights off
completely including the modeling lamp
which will have an impact on the
exposure the downside of doing that
should be fairly obvious it's kind of
dangerous and no one can see what's
going on anymore the other way is with
high speed sync Flash and here are the
three steps you need to make that work
the first one is to gain control of the
room light exposure and that means
changing your shutter speed so nothing
else is going to change still on F 1.4
still on ISO 200 but my shutter speed
I've dialed up to 4 000 of a second
let's take the same photo again and see
what we get this time without the flash
firing so this is just the ambient light
in the room that the camera is recording
no flash no picture that's the most
important part of this process
step number two is to turn the flash
transmitter into high speed sync mode
now on my transmitter from Flashpoint
it's simply a matter of pressing the
sync button and a little h and a
lightning bolt appears that's high speed
sync mode on you might also have to turn
it on your flashes as well luckily with
the flashpoint flashes I don't have to
but your mileage may vary step three is
to work out the power of the flash you
could use TTL flash I like to use manual
flash I'm going to start with my flash
at 1 16 power roughly in the middle of
its power range let's take a test photo
see what we get okay Chloe here we go
quick little test photo first
and the end result is okay but perhaps
just a little bit dark and remember this
is only the light from the flash that
the camera can see
I'd like to increase my flash Power by
One Stop of light and I'm going to do
that by just changing the exposure here
on my transmitter by one stop from 1 16
power to 1 8 power okay Chloe here we go
and that's it I've got my exposure
pretty much bang on okay I think we're
ready to take a few photos so Chloe if
you're ready
let's take a few photos like this okay
here we go
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because the adapter field is so shallow
I'm relying on the camera's face and
particularly eye detect to make sure
that I get Focus exactly where I want it
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foreign
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that if you change anything including
your camera settings the position of the
light or the position of your model you
need to repeat step three again
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aside which should give me a little bit
more contrast and shadows a little bit
more drama in the photos
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high speed sync flash with a single
flash is surprisingly straightforward
but when it comes to adding multiple
flashes one is actually not much more
difficult the key to this working is to
make sure that your flash that you are
using with your main flash is from the
same family of flashes because high
speed sync flash is dependent both on
the camera that you're using and the
Flash brand so this is the flashpoint
evolve 200 it has high speed sync Flash
and it'll work from the same transmitter
but to tell it apart from the other
flash I put a little blue gel on it and
this is going to be a background light
so I'm going to pop this around the back
of Chloe like this
and we'll just aim it straight at the
background
now this is a independently controlled
light so my main light is on group a my
background light is on Group B and the
process for working out the exposure is
exactly the same multiple flashes it's
always a good idea to do one light at a
time so I've turned the key light off
let's just have a look at the background
light it's on 1 64th power a quick test
photo here we go Chloe
and the end result is well a sort of
silhouette but you can see the
background light looks great it's
working perfectly I'm happy with that
and if I turn the key light on this is
how the two lights look together
I still have great light on Chloe I now
have a separate light on the background
but I've maintained that nice shallow
depth of field the whole purpose for
using high speed sync Flash
and that's all there is to it you can
keep adding multiple flashes for as many
as you like but I think for today two
flashes is enough so Chloe are you ready
let's take a few photos like this here
we go
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and if you're thinking maybe I'm using
the fast shutter speed to freeze the
movement that's not actually the case
here because we've removed the ambient
light from the picture it's actually the
short flash duration that's doing that
for me
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thank you
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high speed sync it really is as easy as
just pressing a button but I've gone
through this fairly slowly because if
it's the first time you've used it you
want to know all the ins and outs the
great thing is you can take the same
skills the same technology out of the
studio and use it for different things
for example high speed sync on location
for sports or dance will freeze action
and maintain ambient light you can use
it to sort of overpower the sunshine
sometimes but we've got videos on those
very subjects right here on adoramatv
which reminds me don't forget to click
on the Bell icon so you never miss any
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click on that subscribe button I'm Gavin
hoey thanks for watching