Canon 2514A002 业主指南

1. Do not look at the sun or a bright light source through 

 Doing so could result in loss of 

vision. Looking at the sun directly through the lens is 

especially hazardous. 

2. Whether it is attached to the camera or not, do not 

 This is to prevent the lens from concentrating 

the sun’s rays, which could cause a fire.

 To prevent condensation in this case, first 

put the lens into an airtight plastic bag before taking it 

from a cold to warm environment. Then take out the lens 

after it has warmed gradually. Do the same when taking 

the lens from a warm environment into a cold one.

•  After detaching the lens, place the lens with the rear end 

up to prevent the lens surface and contacts from getting 

scratched.

•  If the contacts get soiled, scratched, or have fingerprints 

on them, corrosion or faulty connections can result. The 

camera and lens may not operate properly.

•  If the contacts get soiled or have fingerprints on them, 

clean them with a soft cloth.

•  If you remove the lens, cover it with the dust cap. To 

attach it properly, align the lens mount index and the  

index of the dust cap as shown in diagram 

❶

, and turn 

clockwise. To remove it, reverse the order.

To shoot in autofocus (AF) mode, set the focus mode switch 

to AF 

❹

.

To shoot in manual focus (MF) mode, set the focus mode 

switch to MF, and focus by turning the focusing ring.

•  Do not touch the rotating parts of the lens while AF is 

active.

•  Do not focus in MF when the focus mode switch is set to 

AF.

●

①

  Focus mode switch

●

②

  Lens mount index

●

③

 Contacts

●

④

 Focusing ring

EF50mm f/1.8 II

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