Canon EF 50mm f/1,8 STM User Manual

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Thank you for purchasing a Canon product.

EF50mm f/1.8 STM is a compact, lightweight, low-profile high quality standard

lens.

“STM” stands for Stepping Motor.

Safety Precautions

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

camera. Doing so could result in loss of vision.

Looking at the sun directly through the lens is especially hazardous.

Whether it is attached to the camera or not, do not leave the lens under

the sun without the lens cap attached. This is to prevent the lens from

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

Handling Cautions

If the lens is taken from a cold environment into a warm one,

condensation may develop on the lens surface and internal parts. 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.

Do not leave the lens in excessive heat such as in a car in direct sunlight.

High temperatures can cause the lens to malfunction.

Usage Precautions

When using this lens, please check the Canon website for the latest camera

firmware. If the camera’s firmware is not the latest version, be sure to update

to the latest firmware.

For details on updating firmware, please check the Canon website.

Cautions during shooting

This lens uses a stepping motor to drive the focusing lens (the lens that has

the job of focusing the shot).

1. Cautions when the power is off

Since the motor does not operate when the camera is off or has been

turned by the auto power-off function, take note of the following points.

• The focus cannot be adjusted in manual focus mode.

2. Cautions when the lens is in sleep mode

This lens has a sleep mode separate from the camera auto power-off

function for saving power when the lens has not been operated for a period

of time.

Since the motor does not operate when the lens is in sleep mode, even if

the camera is turned on, take note of the following points.

• The focus cannot be adjusted in manual focus mode.

• To recover the lens from sleep mode, press the shutter button halfway.

To retract the lens if extended, keep the lens attached to the camera, and

then autofocus at infinity or turn the focusing ring.

Conventions used in this instruction

Warning to prevent lens or camera malfunction or damage.

Supplementary notes on using the lens and taking pictures.

1. Mounting and Detaching the Lens

See your camera’s instructions for details on mounting and detaching the

lens.

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, and turn

clockwise

. To remove it, reverse the order.

Nomenclature

Focusing ring

Hood mount

Filter mounting thread

Focus mode switch

Lens mount index

Contacts

EF Lenses

EF50mm f/1.8 STM

Instructions

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