Hey, Jon here and this is the Canon
Rebel t3i and I’m just going to quickly show you how to take a manual photograph
with this camera. So what we’re going to do is we’re going to turn on our camera.
We’re going to switch it over to M which stands for manual. Now in manual exposure
mode that’s where you’re controlling basically three main settings: shutter
speed, aperture, and ISO, to manipulate the amount of light coming into the camera
and trying to get the right exposure. I’ll set a link to another video I have
if you want to learn more about exactly how SLRs work. So right now you can see
I’m an M. In M mode it has the shutter speed highlighted. The shutter is the
door that sits in front of the sensor. So if I lift open my mirror here you can
almost see the door right there that sits in front of the sensor. That’s the
shutter door and you decide how long that stays open. Now when you do that, (let’s see here to get it to pop-up) in order to do that you turn your mode dial here and
you can see that changes my shutter speed. As I’m changing my shutter speed
you can see that my ISO is changing, that’s because it’s on automatic right
now and it’s compensating automatically. If I want to change my aperture, then I hold
down the AV button and you can see it switches over to aperture and I use that
same wheel to manipulate that. The aperture is the iris that’s inside the
lens. It’s always open until you take the
picture or if you use a depth of field preview button. So it’s kind of difficult
to demonstrate on this camera. The ISO is accessed through this button right here.
So you push that button and you can either have the camera choose or you can
put it on auto. Right now I’m going to put it on 400 which is a good ISO to
have just for general shooting outside or maybe inside with decent light. Now
as I tap the shutter button it’s going to wake up my light meter and this
little peg appears and it disappears after a couple seconds. But if I tap it
again it’ll come up. That is the light meter; that is the camera telling me if
the exposure is correct or not and I need to manipulate these settings in
order to get that little peg to be in the middle in Zero. So in order to do
that I can, let’s say I want to change my aperture first. I’m going to open up this
aperture as wide as it’ll go so it will let in as much light as possible. So in
order to do that I push the AV button, and then I move the dial and this
particular lens will only open up to f/3.5. The lower this number is the more light
it will let in, but this lens is 18-55mm standard will only open up to f/3.5. So
that means that my shutter speed, you can see, my exposure is still way overexposed.
I’m more than four times, actually, higher, more light coming in than I need. So that
means I need a slower shutter speed and that’s fractions of a second. So you can
see as I manipulate my shutter speed, you can see my light meter goes towards zero.
So I’m at 1/800th’s of a second. Now that’s at 400 ISO. The ISO is the light sensitivity of the
digital sensor and the higher this number goes, it’s basically just pumping
more electricity through the sensor to make the same picture with less
light. The trade-off is that it tends to be grainier and not very high quality.
Now once you have that done, I’m gonna turn on the live view here by pushing this
button just to make a little easier, I have, you can move your focus point during
live view with these arrow buttons. Pushing the shutter button halfway down
to focus, you can see I also have my light meter, my shutter speed, my aperture,
are all listed right here as well as the number of photographs I have left and
then my ISO. So that’s all available in live view as well. So I press halfway down to
focus, it’s green, it beeped, it’s in full focus, now I can push it all the way down
to take the photo, and now you can see my photo is correctly exposed. Now let’s say
I’m going to turn off the live view here for a second, and let’s say I take my
shutter speed and I manipulate it so that my light meter reads negative two.
So that’s 1/3200th’s of a second that’s very fast.
Go back to my live view, now you can see, that picture is almost completely dark.
But if I change my shutter speed, you can see my light meter moving here, you can
see it gives you an exposure preview, look at that, so you can tell through the
live view how bright or dark something is going to be and see visually as well
as on the light meter. And then if I manipulate my aperture, which I can only
make smaller right now, it’ll make it darker. So that’s an excellent learning
tool an excellent way of really getting into photography. That’s just the basics
so go and go out and practice, ask a lot of
questions, and I hope this has helped.