Gosh, What’s Aperture?

what is aperture, explanation, tutorial with images

I am going to try to keep this easy, all right?

There’s no need for you to close this site, pack your things and flee to a secluded island.

Don’t let the aperture scare you!

Actually, the aperture is a good friend, it can serve your needs quite magically.

If you are using a point-and-shoot camera, you don’t even have to worry about anything – the camera does it all for you. But if you’re a ‘big’ DSLR camera user, then you might want to have a look into the magical world of the aperture.

So, what is that aperture?

Basically, it is the hole in you lens, or the eye of your camera – opening and closing as you wish.

See? I told you it’s not difficult.

And what does that hole/aperture do?

Well, primarily, there are two types of situations when the aperture can serve you well.

First, when the light conditions in the place where you’re taking photographs are not so good (low-light situations) you can open the aperture wide thus letting more light into your camera allowing it to work more effectively.

And the other kind of situation, the one that I am actually demonstrating here with the pictures, is using the aperture opening to influence the depth of your photographs.

Come, have a look at what I mean, there are plenty of examples here…

what is aperture, explanation, tutorial with images

This is where I demonstrate the depth of the photograph (people usually call that the ‘depth-of-field’).

The picture on the left-hand side has the front subject in sharp focus while the subjects in the background are out of focus. This is called the ‘shallow depth-of-field’. It is so aptly named – you see shallow, you don’t see deep.

On the other hand, the picture on the right-hand side can be described as one with the ‘great depth-of-field’. See? It really is deep – the subject in the foreground is almost of the same sharpness as the ones in the background.

And you know what?

It’s under your control to decide what kind of picture you want to take – whether it’s the shallow one or the deep one.

Isn’t that awesome?

And yes, it has something to do with the numbers I’ve pasted into the pictures.

what is aperture, explanation, tutorial with images

The ‘f/number’ that I’ve pasted into the pictures for you is meant to describe the aperture setting I had used while taking the particular picture. In photography, the ‘f’, or ‘f-stop’ or ‘f-number’ is used when the aperture is being discussed.

To practice the control over your camera’s aperture, all you need to do is to search you camera manual and find the little article on the aperture.

Once you find it and learn where that little button is, just do this: go for the lowest numbers (like 2 in my picture) if you want the shallow depth-of-field and go for the highest numbers (like 22 in my picture) if you want the ‘deep’, all-focused pics.

Your lowest and highest numbers might be different than mine since lenses differ in this aspect.

what is aperture, explanation, tutorial with images

So what’s this again?

Petra?

Deep or shallow?

Yes, it’s deep, because I had my camera set at a high number – 22 in this case – making everything from the foreground to the background being in focus.

what is aperture, explanation, tutorial with images

This is another example.

Three happy apples posing just for you.

what is aperture, explanation, tutorial with images

The front apple is enjoying the focal attention while his friends are standing in the background being out of focus.

what is aperture, explanation, tutorial with images

Here, all three apples enjoy being in focus.

I’d call this picture ‘One for all, all for one’.

what is aperture, explanation, tutorial with images

Here, some peas also want you to see what the aperture is all about.

That’s so kind of them.

what is aperture, explanation, tutorial with images

Low number – shallow depth-of-field.

There are times when you want to isolate your subject…when you want it to be in sharp focus while having the background out of focus. Portraits or food photos are good examples of these situations.

what is aperture, explanation, tutorial with images

High number – great depth-of-field.

There are different situations when you’ll definitely want to have as many details in focus as possible. Just imagine taking a picture of a landscape, for instance, with all its trees, animals, hills, river, clouds…everything crisp and clear.

Note: I really need to let you know of this fact – the smaller the f-number the wider is the aperture opening. A little technical detail that you can remember or forget right now. I give you the permission.

I hope this all made at least a little sense and was of some help.

I wish you a lot of fun while playing with your aperture.

Go and have fun!

See you soon.

Love,

Petra

 

Three Ways to Increase Contrast in Photography

Have you ever considered increasing contrast in your photos?

If I should speak for myself, I clearly remember the days when I was looking at the pictures I’d made and thought:‘Why, oh why does there have to be that ugly gray cast over my photos? I don’t want it to be there. I want my pictures to be vibrant and crisp!’

To solve this problem I first decided to pray and cry and scream and kick around and then cry some more (because that is the usual way how I solve my problems)…and then I remembered that times have changed and all that one needs to do to solve all the problems is to sit on her butt and start googling.

So I googled.

And did I find gorgeous things!

Basically, I came across three ways to increase contrast.

They can be used separately or all together.

Just have a look:

This is a SOOC (straight out of camera) picture that I made a couple of months ago on one of our trips.

And this is what I got after I opened my Photoshop and played for a while.

Note: I am using Photoshop Elements 8.

1. This is the first way to achieve better contrast in your pictures.

The change is rather subtle here – the final picture is a bit more defined and also slightly more vibrant.

To use the first method go to ENHANCE (situated in the tool menu on top of your screen) -> ADJUST LIGHTING -> BRIGHTNESS/CONTRAST.

A small window will pop up.

In that window, drag the Contrast slider to the right just until you like the picture.

Try to be gentle since this method is rather strong.

And here we are with a tad better contrast.

But we want more, right?

2. This is the second method I’ve found.

In this case, go to ENHANCE -> ADJUST COLOR -> ADJUST COLOR CURVES.

A big window will pop up.

In this window you’ll see four sliders. Drag them so that you achieve a slight S-shaped curve on the graph.

This method is very effective, very gentle to the picture and it also pumps up your colors a little.

You just have to love it.

But there’s something that you’ll love even more…you’ll actually love it more than anything in this world…

3. And this is it – raising contrast with UNSHARP MASK.

Yes, I hear you – you use unsharp mask to sharpen your images.

And that is precisely what its primary purpose is.

But if you happen to adjust it ‘crazily’ – you’ll witness a miracle.

Just try it for yourself…go to ENHANCE -> UNSHARP MASK.

Now you’ll see a small window with three sliders – Amount, Radius and Threshold.

We are going to work with first two only.

With the first slider (Amount) go somewhere from 10 to 25 and with the second one (Radius) go almost to the end of the line.

And get amazed!

A am not lying when I say that I nearly shed a tear when I saw the result of this method for the first time.

It’s breathtaking.

The image is so much crisper, vibrant and more real.

I just love it!

Okay, being gentle with photo processing is one thing.

And I highly recommend that.

But being so greedy that you can’t help yourself from applying all the contrast increasing ways you know to one picture is something totally different.

I think that it’s done by people who want their images to be obnoxiously soaked up with everything there is to get.

I don’t know people like that.

All I know is that the picture above has all three methods applied to it.

(Oh, and in the last picture, that ‘someone’ also freed the horses’ heads from the shadow by going to ENHANCE -> ADJUST LIGHTING -> SHADOWS/HIGHLIGHTS.)

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