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Part I: Getting Started
2. Push the barrel away from the camera to zoom in, and pull the barrel
toward the camera to zoom out.
About STM lenses
The Canon STM (Stepper Motor) lens series sport a motor that the camera
uses to auto-focus on your subjects. The technology employed in STM lenses
allows for silent focusing. When you use an STM lens, you won’t hear any
mechanical noise from the lens like you would with a non-STM lens. Your
camera can auto-focus when you record movies, which is another reason
why Canon created this line of lenses. Comparatively, the mechanical noise
of a non-STM lens is recorded with the soundtrack of any movie you create.
As of this writing, Canon makes the following models of STM lenses that are
compatible with your camera:
✓
18–55mm f/3.5–5.6 IS STM:
This is the kit lens for the SL1/100D. It covers
a focal length range that enables you to create a wide assortment of
images from wide-angle landscapes to up-close-and-personal head-and-
shoulders portraits.
✓
18–135mm f/3.5–5.6 IS STM:
This lens covers a long focal length range
and features image stabilization. The wider focal lengths of this lens are
ideal for creating landscape images. The range from 50mm to 80mm is
ideal for creating portraits, and the longer focal lengths enable you to
zoom in on wildlife, like wading birds.
✓
40mm f/2.8 STM:
This lens may be the ideal walkabout lens for your
camera. The body and lens combine for a very small footprint, helping
make you look relatively innocuous when photographing city and street
scenes. The 35mm equivalent focal length for this lens is 64mm, which
is close to the area that the human eye can perceive. With a maximum
aperture of f/2.8, it’s also a
fast
lens, meaning you can more easily create
images in dim light without a flash.
Using Digital Film
Okay, so it’s not really “film.” Instead of those celluloid negatives you’ve
come to know and love (or not), the devices you store your digital images on
are memory cards. Memory cards are way better than film because you can
reuse them thousands of times before they self-destruct. Well, they don’t self-
destruct, but like any device, they don’t last forever. At least they don’t get
scratched like film often does. I bring you up to speed on the memory cards
your camera uses in the upcoming sections.
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