Teaching Myself by Teaching You Part II: Basic Aperture


Alright.

First, DFS tells me that aperture is the ‘size of the opening in the lens when the picture is taken.’

Got it. Looks like this:

What a beaut.

Anyway, aperture is measured in f-stops, and moving from one f-stop to another either halves or doubles the size of the amount of opening in your lens. One thing all the sites I checked emphasized is the concept that: the higher the f-stop, the smaller the aperture—the smaller the f-stop, the higher the aperture.

So remember that, they said it’s important.

(I also learned that manual focus lenses are where it’s at.)

Moving on. I’ve also learned that aperture has everything to do with depth of field (DOF) and depth of field has everything to do with aperture.With a smaller aperture opening, there will be a greater DOF (the background of the image will be sharp). With a larger aperture opening, there will be a smaller DOF, (background of the image will be blurry). This is important to know.

Here’s a cool chart I see all over the internet:

“As you can see in this diagram the F-stop f/16 has has a very small aperture opening (so by using this f-stop you will let in less light, so your image will be darker but there will be more depth of field, so your background will be sharper).

The F-stop f/1.4 has a very large aperture opening ( so by using this f-stop you will let in more light, so your image will be lighter but there will be less depth of field, so your background will not be very sharp).” taken from here.

Below are the aperture/shutter speed equivalents. Now I have to memorize them and junk. (I’m so sorry I’m sounding so unintelligent right now, my sources are kind of choppy…and it’s 1 AM.)

Aperture value(s): f/64, f/32, f/22, f/16, f/11, f/8.0, f/5.6, f/4.0, f/2.8, f/2.0, f/1.8/f1.4 etc. (WE ARE HERE) Control via the lens section
Shutter speed(s): 1/8000, 1/4000, 1/2000, 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30, 1/15, 1/8, 1/4, 1/2, 1 sec, etc. Control via the Camera section

Enjoy! And thanks for reading. What did you think…helpful? Not? What else is important to know about aperture?

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