Page 20 - (DK) Advanced Photography Guide
P. 20
18 EXPLAINING | CAMERAS
SINGLE LENS REFLEX CAMERAS
Inside a single lens reflex (SLR) camera is a in 35mm film cameras since the 1940s;
mirror that directs light from the lens through however, the concept itself dates from the
a pentaprism (a five-sided prism) to an optical late 19th century. Modern digital SLR cameras
viewfinder. The image in the viewfinder is (or DSLRs) can trace their lineage directly
displayed in the correct orientation and back to 35mm camera designs. This means
allows the photographer to compose shots that some equipment, such as lenses, may
accurately. This system has been employed be compatible on both types of SLR.
CONSUMER VS. PROFESSIONAL
There are two broad categories of DSLR: consumer and
professional. Consumer DSLRs are usually smaller, lighter, and
cheaper than professional models and are generally designed 5
to make photography as easy and foolproof as possible.
Professional DSLRs, though less intuitive to use, offer a
greater range of options and are more rugged.
CONSUMER
Consumer cameras tend to have all the key features that a 2 8
serious photographer needs without the cost or bulk of
a professional model. 10
6
1
WHAT TO EXPECT
◾ ◾ Pop-up flash
◾ ◾ Low flash-sync speed (see pp.138–39)
◾ ◾ 95–98% optical viewfinder
◾ ◾ Automated scene modes for
simplified shooting
◾ ◾ Few physical controls and buttons
◾ ◾ Low frame rate 7
◾ ◾ Lightweight polycarbonate body
with little or no weather sealing
◾ ◾ APS-C (cropped) sensor
◾ ◾ Available with a kit lens
◾ ◾ Around 9 to 19 AF points 3 4
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