Page 25 - (DK) Advanced Photography Guide

E Q UIPMEN T 23

CLEANING LENSES

Dirt and dust on the glass surfaces of
a lens can affect image quality. It is
therefore important to keep the lens
as clean as possible. One easy way
to do this is to use the front and rear
lens caps whenever a lens isn’t in use.
Lenses should be cleaned only as and
when necessary; too much cleaning
increases the risk of scratching or
damaging the lens coatings.

USE A BLOWER BRUSH WIPE WITH A CLOTH
Start by holding the lens upside Use a moistened cloth to gently
down and using the blower brush to wipe in a circular motion from the center
remove any loose dust and grit. of the lens out toward the edge.

PRO-SPEC LENSES MACRO LENS SPECIALITY LENSES

Many lens manufacturers offer higher- A macro lens lets you shoot close-up This category of lenses (see pp.106–107)
spec lenses, with features such as images life-size or larger. See pp.112–113 includes fisheye and tilt-shift lenses. It
weather sealing and low-dispersion for more information on shooting with may be more financially viable to rent
glass to reduce chromatic aberration. macro lenses. these as needed instead of buying them.

POSITIVES POSITIVES POSITIVES
◾ ◾ Excellent optical and build quality ◾ ◾ Can also be used as a normal lens ◾ ◾ Unique features not found with
◾ ◾ Zooms feature a fixed maximum ◾ ◾ Excellent optical quality standard lenses
aperture ◾ ◾ Large maximum aperture

NEGATIVES NEGATIVES NEGATIVES

◾ ◾ Expensive ◾ ◾ Expensive ◾ ◾ Expensive
◾ ◾ Larger and heavier than a ◾ ◾ Limited focal-length options ◾ ◾ For specific uses only
consumer lens ◾ ◾ True macro lenses are usually only
available as fixed-focal-length lenses

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