Canon Macro Twin Light MT-26EX-RT Instruction Manual

INSTRUCTION

MANUAL

Introduction

The Canon Macro Twin Lite MT-26EX-RT is a flash unit for shooting closeups with Canon EOS cameras, compatible with E-TTL II/E-TTL autoflash systems. The flash unit is equipped with various functions suitable for a wide range of shooting objectives, from simple shooting to advanced shooting. It has functions to control the flash ratio between flash heads A and B, single-side firing, radio/optical transmission wireless multiple flash photography using additional slave flash units, and manual flash.

Before Starting to Shoot, Be Sure to Read the Following

To avoid botched pictures and accidents, first read the “Safety Instructions” (pages 8-9). Also, read this manual carefully to ensure that you use the product correctly.

Read This Instruction Manual while also Referring to Your Camera’s Instruction Manual

Before using the product, read this Instruction Manual and your camera’s Instruction Manual to familiarize yourself with their operations. Be sure to store this manual safely, too, so that you can refer to it again when necessary.

Using the MT-26EX-RT with a Camera

Using with an EOS DIGITAL camera (Type-A camera)

You can use the MT-26EX-RT for easy macro flash photography using autoflash control in the same way as a camera’s built-in flash.

Using with an EOS film camera

An EOS camera with E-TTL II/E-TTL autoflash metering

system (Type-A camera)

You can use the MT-26EX-RT for easy macro flash photography using autoflash control in the same way as a camera’s built-in flash.

An EOS camera with TTL autoflash metering system (Type-B

camera)

See page 121.

* This Instruction Manual assumes that the MT-26EX-RT is used with a

Typ e -A ca m e ra.

Chapters

Introduction

Getting Started with Macro Flash Photography

Preparing for macro flash photography and basic shooting operations

Setting Flash Functions with Camera Controls

Setting the flash functions from the camera’s menu screen

Radio Transmission Wireless Multiple Flash

Photography

Wireless multiple flash shooting by radio transmission

Optical Transmission Wireless Multiple Flash

Photography

Wireless multiple flash shooting by optical transmission

Customizing the MT-26EX-RT

Customizing with Custom Functions and Personal Functions

Reference

System map, troubleshooting guide, using with a type-B camera

107

Conventions Used in this Manual

Icons in this Manual

9 : Indicates the Select dial. 8 : Indicates the Select/Set button.

3/1/4/ : Indicates that the respective function remains

7/2 active for approx. 4 sec., 6 sec., 8 sec., 10 sec., or 16

(p.**) : Reference page numbers for more information.

M : M shown on the upper right of the page title indicates

Basic Assumptions

The operation procedures assume that the MT-26EX-RT is attached to

the camera and that both are turned on.

The icons used for buttons, dials, and symbols in the text match the icons

found on the MT-26EX-RT and the camera.

The selection operation performed when setting a function basically

describes selecting a function by turning <9>.

When <?> is displayed at the Function button 4 position, the screen

returns to the previous screen by pressing <?>.

The operation procedures assume that the Custom Functions and

Personal Functions of the MT-26EX-RT, and the menu and Custom

Functions of the camera are at their default settings.

All figures such as the number of flashes are based on the use of four

AA/LR6 alkaline batteries and Canon’s testing standards.

The operation procedures assume that a macro lens is used.

sec. after you let go of the button.

: Warning to prevent shooting problems.

: Supplemental information.

that the function is performed when the camera’s shooting mode is set to <d/s/f/a/bulb(B)> (Creative Zone mode).

Introduction 2

Chapters ...........................................................................................3

Conventions Used in this Manual .....................................................4

Index to Features..............................................................................7

Safety Instructions ............................................................................8

Nomenclature..................................................................................10

Getting Started with Macro Flash Photography 17

Installing the Batteries.....................................................................18

Attaching and Detaching the Control Unit to and from

the Camera .....................................................................................20

Attaching and Detaching the Flash Unit to the Lens.......................21

Adjusting the Flash Unit..................................................................22

Turning on the Power......................................................................27

a: Fully Automatic Flash Photography ...................................30

E-TTL II/E-TTL Autoflash by Shooting Mode ..................................32

Effective Flash Metering Range......................................................35

D Combined Use with the Diffuser Adapter .................................36

l Setting the Flash Ratio .....................................................38

f Flash Exposure Compensation .................................................40

g FEB...........................................................................................41

7: FE Lock...................................................................................42

c High-speed Sync........................................................................43

r Second-curtain Sync................................................................44

q: Manual Flash.............................................................................45

Clearing MT-26EX-RT Settings ......................................................49

Setting Flash Functions with Camera Controls 51

Flash Control from the Camera’s Menu Screen..............................52

Contents

Radio Transmission Wireless Multiple Flash Photography

' Radio Transmission Wireless Multiple Flash Photography ....... 58

Radio Transmission Wireless Settings........................................... 64

a: Multiple Flash Photography with Slave C Added .............. 69

a: Advanced Multiple Flash Photography with Slaves A, B,

and C Added .................................................................................. 74

q: Multiple Flash Photography with Manual Flash Output ............ 76

[: Shooting in a Different Flash Mode for Each Group ................ 78

Optical Transmission Wireless Multiple Flash Photography

:Optical Transmission Wireless Multiple Flash Photography .... 82

Optical Transmission Wireless Settings ......................................... 85

a: Multiple Flash Photography with Slave C Added .............. 88

a: Advanced Multiple Flash Photography with Slaves A, B,

and C Added .................................................................................. 92

q: Wireless Multiple Flash Photography with Manual Flash

Output............................................................................................. 94

Customizing the MT-26EX-RT 97

C / >: Setting Custom and Personal Functions................... 98

C: Setting Custom Functions.................................................. 101

>: Setting Personal Functions................................................. 104

Reference 107

MT-26EX-RT System ................................................................... 108

f Flash Firing Restrictions due to Temperature Increase ......... 110

Troubleshooting Guide................................................................. 112

Specifications ............................................................................... 116

Using with a Type-B Camera ....................................................... 121

Radio Transmission Wireless Function........................................ 122

Index............................................................................................. 125

Index to Features

Power Source

Batteries Î p.18

Firing interval/count Î p.18

Power ON/OFF Î p.27

Flash ready Î p.27

Quick flash Î p.27

Auto power off Î p.28

Operations

Attaching and detaching

the MT-26EX-RT Î p.20,

p.21

Lock function Î p.28

LCD panel illumination Î p.29

Normal Flash Photography

Full auto (E-TTL) Î p.30

Autoflash by shooting

mode Î p.32

Manual flash Î p.45

Metered manual flash Î p.48

Function

Modeling flash Î p.34

Diffuser adapter Î p.36

Flash exposure

compensation Î p.40

FEB Î p.41

FE lock Î p.42

High-speed sync Î p.43

Second-curtain sync Î p.44

Clearing settings

(Reverting to defaults) Î p.49

Flash function settings Î p.51

Flash firing restriction Î p.110

Typ e-B c am e ra Î p.121

Radio Transmission Wireless Photography

Remote release Î p.67

Memory function Î p.68

Manual flash Î p.76

Group flash Î p.78

Optical Transmission Wireless Photography

Memory function Î p.87

Manual flash Î p.94

Customization

Clear all Î p.100

Custom Functions (C.Fn)

Personal Functions (P.Fn)

Î p.101

Î p.104

Safety Instructions

Be sure to read these instructions in order to operate the product safely. Follow these instructions to prevent injury or harm to the operator of the product or others.

WARNING:

Keep the product out of the reach of young children. A strap or cord wrapped around a person’s neck may result in strangulation. The battery is dangerous if swallowed. If swallowed, seek immediate medical assistance.

Use only power sources specified in this instruction manual for use with the product.

Do not disassemble or modify the product.

Do not expose the product to strong shocks or vibration.

Do not touch any exposed internal parts.

Stop using the product in any case of unusual circumstances such as the presence of

smoke or a strange smell.

Do not use organic solvents such as alcohol, benzine or paint thinner to clean the

product.

Do not get the product wet. Do not insert foreign objects or liquids into the product.

Do not use the product where flammable gases may be present. This may cause electric shock, explosion or fire.

Observe the following instructions when using commercially available batteries or

provided battery packs.

• Use batteries/battery packs only with their specified product.

• Do not heat batteries or expose them to fire.

• Do not charge batteries/battery packs using non-authorized battery chargers.

• Do not expose the terminals to dirt or let them come into contact with metallic pins or other metal objects.

• Do not use leaking batteries/battery packs.

• When disposing of batteries/battery packs, insulate the terminals with tape or other means.

This may cause electric shock, explosion or fire. If a battery/battery pack leaks and the material contacts your skin or clothing, flush the exposed area thoroughly with running water. In case of eye contact, flush thoroughly with copious amounts of clean running water and seek immediate medical assistance.

Do not allow the product to maintain contact with the same area of skin for extended

periods of time during use. This may result in low-temperature contact burns, including skin redness and blistering, even if the product does not feel hot. The use of a tripod or similar equipment is recommended when using the product in hot places and for people with circulation problems or less sensitive skin.

Denotes the risk of serious injury or death.

Safety Instructions

Follow any indications to turn off the product in places where its use is forbidden. Not doing so may cause other equipment to malfunction due to the effect of electromagnetic waves and even result in accidents.

To prevent fire, excessive heat, chemical leakage, explosions, and electrical shock,

follow the safeguards below:

• Do not insert the battery’s plus and minus ends incorrectly.

Do not fire the flash at anyone driving a car or other vehicle. It may cause an accident.

Do not use or store the equipment in dusty or humid places. This is to prevent fire, excessive heat, electrical shock, and burns.

CAUTION:

Do not fire the flash near the eyes.

It may hurt the eyes.

Flash emits high temperatures when fired. Keep fingers, any other part of your body,

and objects away from the flash unit while taking pictures. This may cause burns or malfunction of the flash.

Do not leave the product in places exposed to extremely high or low temperatures.

The product may become extremely hot/cold and cause burns or injury when touched.

Do not touch any parts inside the product.

This may cause injury.

When the product is not in use for a prolonged period, make sure to remove the

batteries before storing. This is to prevent malfunction or corrosion.

Be careful when you replace the batteries after continually firing.

The batteries may be hot and it may cause a skin burn.

Denotes the risk of injury.

Nomenclature

Flash Unit

Connecting cord

Focusing lamp (p.33)

Rotate button

(p.22)

Flash Unit

Hood mount (p.26)

Release button (p.21, 22)

Flash head B (p.21, 36)

Flash head mount (p.21, 22)

Standard position index (Vertical angle) (p.22)

Flash Unit Rear Flash Head Side & Bottom

Release levers

<a> Indicator

(p.36)

Mount ring (p.21, 22)

Filter mounting thread (p.25) (58 mm dia.)

<b> Indicator

(p.36)

Tripod socket

Flash head A (p.21, 36)

Diffuser adapter attachment mount (p.36)

Standard position index (Horizontal angle) Angle setting scale (p.22)

Mounting foot (Flash unit) (p.21)

Control Unit

Function button 2

Function button 1

<d> Focusing lamp button (p.33)

<E> Flash mode button (p.30, 45, 69, 76, 78, 88, 94)

<Q> Flash-ready lamp/ Test flash button (p.28, 70, 89, 101, 105, 112 )

Terminal cover

Mounting foot lock lever (p.20)

Lock-release button (p.20)

Function button 3

LCD panel

Function button 4

<,> Flash ratio setting/ Flash head select button (p.38, 45, 64, 69, 74, 76, 85, 88, 92, 94)

Power switch (p.27) <K>:Power on <a> : Button/Dial lock

<J>:Power off

Flash exposure confirmation lamp (p.30, 71, 89)

<9> Select Dial

<8> Setting button

Nomenclature

(Power on)

Mounting foot (Control unit) (p.20)

External power source terminal

Contacts

Battery compartment cover lock release lever (p.18)

Mounting foot locking pin

Battery compartment cover (p.18)

Nomenclature

LCD Panel

E-TTL II/E-TTL Autoflash (p.30)

G : Charge indicator (p.27)

a : E-TTL II/E-TTL

autoflash

Diffuser adapter (p.36)

E : Attached to A F : Attached to B D : Attached to

A, B

f : Flash exposure

compensation (p.40, 55)

Flash exposure compensation amount

Firing group

l : Fire A:B (flash ratio control) 4 : Fire A (single-side firing) 5 : Fire B (single-side firing)

Manual Flash (p.45)

c : High-speed sync (p.43, 55) r : Second-curtain sync (p.44, 55)

< : Personal Functions

(p.98, 101)

= : Custom Functions

(p.98, 104)

> : Personal/Custom

Functions

Flash exposure level

Aperture

FEB sequence (p.102)

g : FEB (p.41, 55)

, : Flash ratio setting

(p.38)

Flash ratio

The displays shown are examples. The display will show only the

conditions currently applied.

The functions displayed above function buttons 1 to 4, such as <u>

and <@>, change according to the setting status.

When a button or dial is operated, the LCD panel illuminates (p.29).

Nomenclature

Radio Transmission Wireless Multiple Flash Photography

(p.57)

Firing group control G : Master unit/Slave unit charge

, : Flash ratio control

Flash mode a : E-TTL II/E-TTL

autoflash

q : Manual flash [ : Group flash

: Wireless shooting

(master)

Firing group l: Fire A:B

(flash ratio control)

4:Fire A 5:Fire B 6: Fire C (slave C) j: Fire A, B, and C

Flash mode for each group ([ only)

status

k : Sync speed warning

M : Master setting v : Sub-master status (p.73)

' : Radio transmission

wireless shooting

w: Unconnected x: Connection error

* : Transmission

channel

): Transmission

channel automatic setting

Q : Slave flash ready

Flash ratio

Firing group charge status ([ only)

m : Flash not ready x : Flash ready

During radio transmission wireless multiple flash shooting, when the master unit and slave unit are fully charged, <G> disappears. Also, during <[> flash shooting, when all flash units are fully charged, the “firing group charge status” indication also disappears.

Nomenclature

Optical Transmission Wireless Multiple Flash Photography

(p.81)

Flash mode a : E-TTL II/E-TTL

autoflash

q : Manual flash

: Wireless shooting

(master)

Firing group l: Fire A:B

(flash ratio control)

4:Fire A 5:Fire B 6: Fire C (slave C) j: Fire A, B, and C

G : Charge indicator

M : Master setting

:: Optical

transmission wireless shooting

* : Transmission

channel

Provided Accessories

Nomenclature

Diffuser adapter pockets

Flash head pockets

Case

Diffuser adapter

SDA-E1

(p.36)

Mount ring pocket

Getting Started with

Macro Flash Photography

This chapter describes the preparations before starting macro flash photography and the basic shooting operations.

Cautions for firing continuous flash

To avoid degrading and damaging the flash unit due to

overheating, limit the continuous firing at full output to 20 times or less. After continuously firing the flash 20 times, allow a rest time of at least 10 min.

If you fire the flash continuously 48 times and then fire the

flash again repeatedly at short intervals, the safety function may activate and restrict flash firing. With flash firing restriction, the firing interval is automatically set to approx. 8-20 sec. If this happens, allow a rest time of at least 25 min.

For details, see “Flash Firing Restrictions due to

Temperature Increase” on page 110.

Conditions of the subject greatly influence the exposure when shooting close-ups. Therefore, it is recommended to shoot the same subject with different exposures (p.40) and check the exposure after shooting.

Installing the Batteries

Install four AA/R6 batteries for power supply.

Open the cover.

Slide the lock-release lever to the left

as shown in the illustration, slide the cover down, then open the battery compartment cover.

Install the batteries.

Make sure the “+” and “-” electrical

contacts are correctly oriented as shown in the battery compartment.

The grooves on the side surfaces of

the battery compartment indicate “-”. This is convenient when replacing the batteries in a dark place.

Close the cover.

Close the battery compartment cover

and slide it up.

X When it clicks in place, the battery

compartment cover is locked.

Firing Interval and Number of Flashes

MT-26EX-RT alone

Firing Interval

Quick Flash Normal Flash

Approx. 0.1-3.3 seconds Approx. 0.1 - 5.5 seconds Approx. 100 - 700 times

Based on new AA/LR6 alkaline batteries, both-sides firing, and Canon’s testing

standards.

The Quick flash function enables flash photography before the flash is fully

charged (p.27).

Number of Flashes

Installing the Batteries

CAUTION

Do not use “AA/R6 lithium batteries”.

Note that certain “AA/R6 lithium batteries” may become extremely hot in rare cases during use. Due to safety reasons, do not use “AA/R6 lithium batteries”.

When performing continuous flash, do not touch the flash unit,

batteries, or the area near the battery compartment.

When continuous flash or modeling flash is repeatedly fired at short intervals, do not touch the flash unit, batteries, or the area near the battery compartment. The flash unit, batteries, and area near the battery compartment may become hot, resulting in the risk of burn.

Do not allow the product to maintain contact with the same area of

skin for extended periods of time during use.

This may result in low-temperature contact burns, including skin redness and blistering, even if the product does not feel hot. The use of a tripod or similar equipment is recommended when using the product in hot places and for people with circulation problems or less sensitive skin.

Using AA/R6 batteries other than the alkaline type may cause contact

failure because their battery contact shapes are not standardized.

When using the Compact Battery Pack CP-E4N (sold separately, p.109),

also refer to the CP-E4N Instruction Manual.

When <!> is displayed or the LCD panel display turns off during

recharging, replace the batteries with new ones.

Use a new set of four batteries of the same brand. When replacing the

batteries, replace all four at one time.

AA/HR6 Ni-MH batteries can also be used.

Attaching and Detaching the Control Unit to and from the Camera

Attach the control unit.

Slip the control unit’s mounting foot

all the way into the camera’s hot shoe.

Secure the control unit.

Slide the mounting foot lock lever to

the right.

X When the lock lever clicks in place, it

is locked.

Detach the control unit.

While pressing the lock-release

button, slide the lock lever to the left and detach the control unit from the camera.

Be sure to turn off the MT-26EX-RT before attaching or detaching it.

Attaching and Detaching the Flash Unit to the Lens

Attach the flash unit to the front

of the lens while holding down the release button on the mount ring.

Position the release button toward the

top.

Make sure that the flash unit is

securely attached.

Detach the flash unit while holding

down the release button.

Attach flash heads A and B to

flash head mounts.

Push them in to the mounting feet

until they click in place.

To detach the flash heads, press the

release lever (p.10).

Be sure to attach the flash unit to the lens when shooting. Shooting while

holding the flash unit in your hand may result in a low temperature burn.

Do not touch the flash unit or batteries immediately after continuous flash

firing or modeling flash (p.34). Touching them may result in a burn. Make sure that the flash unit has cooled before detaching the flash unit or replacing batteries.

To rotate the mount ring, be sure to first hold down the release button. If the Macrolite Adapter 72C screwed onto the EF180mm f/3.5L Macro

USM lens filter thread becomes stuck and cannot be unscrewed, without pressing the release button, turn the mount ring against the lens in the direction you would to detach the adapter.

The flash unit cannot be attached to the EF-M28mm f/3.5 Macro IS STM.

When using the following lenses, attach the Macrolite Adapter (sold separately) to the front of the lens (filter mounting thread) and then attach the flash unit.

• EF100mm f/2.8L Macro IS USM: Macrolite Adapter 67

• EF180mm f/3.5L Macro USM: Macrolite Adapter 72C

Adjusting the Flash Unit

Flash Unit Adjustment Range

The MT-26EX-RT’s flash unit can be adjusted within the range shown below to match the lens and subject.

Standard position index (Horizontal angle) Angle setting scale

Flash head

Rotate button

Standard position index (Vertical angle)

"To rotate the mount ring, rotate it while holding down the release

button.

#To rotate the flash head mount, rotate it while holding down the

rotate button.

$To rotate the flash head in the direction of %, directly move the

flash head.

Release button

Do not adjust the flash head angle beyond the adjustable range. Doing so may cause the flash head to detach and fall from the flash head mount.

The adjustable range may be further limited depending on the camera

and lens.

Adjusting the Flash Unit

Adjustment Guidelines

This is a general guide to setting the flash angle for various magnifications with a macro lens. Refer to the angle scale (15° increments) on the side of the flash head and set the same angle for both flash heads A and B. The angle specifications in the table below indicate the inner angle relative to the flash head’s standard position index (horizontal).

Lens Magnification

EF50mm f/2.5 Compact Macro

EF50mm f/2.5 Compact Macro +Life-Size Converter EF

EF100mm f/2.8L Macro IS USM EF100mm f/2.8 Macro USM

EF100mm f/2.8 Macro

1:2

1:2.5 - 1:3

1:4

1:5 - 1:6

1:8

1:10

1:1

1:1.2

1:1.5 - 1:2

1:4

1:1 - 1:1.5

1:2

1:2.5 - 1:3

1:4 1:1

1:1.5

1:2

1:2.5 - 1:3

1:4

Flash Head Inner Angle

60° 45° 30° 15° 0°

Adjusting the Flash Unit

Lens Magnification

EF180mm f/3.5L Macro USM

EF-S35mm f/2.8 Macro IS STM

EF-S60mm f/2.8 Macro USM

MP-E65mm f/2.8 1-5x Macro Photo

* Near the closest focusing distance, the flash unit may touch the subject

depending on the shape or size of the subject. Also, the light from the focusing lamp may be obstructed.

1:1

1:1.2 - 1:1.5

1:2 - 1:10

1:1*

1:1.4

1:2

1:3.3

1:1

1:1.5

1:2 1:3 1:4 1:5

5x - 2x

Flash Head Inner Angle

60° 45° 30° 15° 0°

Adjusting the Flash Unit

Using a Filter

A commercially-available filter can be used during flash photography. A filter can be attached, using the two procedures described below. Filters may not be used together with some macro lenses.

(1) Attach a 58 mm filter to the filter mounting thread of the mount ring

(see the above illustration).

(2) Attach the flash unit to the lens with the filter attached to the front of

the lens (filter mounting thread).

Macro Lens

EF50mm f/2.5 Compact Macro Not usable*

EF100mm f/2.8 Macro

EF100mm f/2.8 Macro USM Not Usable

EF100mm f/2.8L Macro IS USM

EF180mm f/3.5L Macro USM

EF-S35mm f/2.8 Macro IS STM

EF-S60mm f/2.8 Macro USM Usable

MP-E65mm f/2.8 1-5x Macro Photo Not Usable

*1: The lens cannot be used with a filter, since focusing is interrupted by an

attached filter touching the front of the lens. Also, filter may be damaged or the

lens malfunction may result.

*2: Attach a filter to the front of the lens before attaching Macrolite Adapter (p.21) to

the front part of the filter. If attachment threads are not provided on the front rim

of the filter, the flash unit cannot be attached since Macrolite Adapter cannot be

attached. Note that if the flash unit is attached after a filter and Macrolite

Adapter are attached to the front of the lens, the periphery of the photo may

look darker.

*3: Attach the Lens Hood ES-27 to the front of the lens before attaching a 49 mm

filter.

Filter Compatibility

(1) (2)

Conditionally

Usable

Conditionally

Usable

usable*

Adjusting the Flash Unit

Using a Hood

When mounting a dedicated hood (sold separately) to the MP-

E65mm f/2.8 1-5x Macro Photo or mounting the Lens Hood ES-27 to EF-S35mm f/2.8 Macro IS STM, first attach the hood, then attach the mount ring. If a hood is attached, a 58 mm filter cannot be attached to the filter mounting thread of the mount ring.

With the EF100mm f/2.8 Macro USM, the Lens Hood ET-67 can be

attached to the mount ring’s hood mount. Use ambient light for shooting. Using flash will result in darkened edges.

Turning on the Power

Set the power switch to <K>.

X The flash recharge starts. X During recharging, <G> is

displayed on the LCD panel. When flash recharge is complete, this indicator disappears.

Check that the flash is ready.

The status of the flash-ready lamp

changes from off to green (Quick flash ready), then to red (fully charged).

You can press the test flash button

(flash-ready lamp) to fire a test flash.

Quick Flash Function

The Quick flash function enables flash photography when the flashready lamp is lit green (before the flash is fully charged). Quick flash is available regardless of the camera’s drive mode setting. Although the flash output will be approx. 1/2 to 1/6 of the full output, it is useful for shooting with a shorter firing interval. During manual flash shooting, this function is available when the flash output is set to 1/4 or smaller. Note that you cannot use Quick flash with FEB or during wireless multiple flash shooting.

When Quick flash is fired during continuous shooting, underexposure

may occur since the flash output decreases.

Note that the test flash cannot be performed while the camera’s metering

timer, etc. is operating.

For the display of <G> during radio transmission wireless multiple flash shooting, see page 72.

Turning on the Power

Auto Power Off Function

To save battery power, the power will turn off automatically after approx. 90 sec. of idle use. To turn on the MT-26EX-RT again, press the camera’s shutter button halfway or press the test flash button (flashready lamp). When set as the master unit for radio transmission wireless multiple flash shooting (p.58), the time until auto power off takes effect is approx. 5 min.

Lock Function

By setting the power switch to <a>, you can disable the flash’s button and dial operations. It is useful when you want to prevent the flash function settings from being accidentally changed after you set them. If you operate a button or dial, <k> is displayed on the LCD panel. While the lock is active, the functions displayed above function buttons 1 to 4, such as <u> and <@>, are not displayed.

Turning on the Power

LCD Panel Illumination

When a button or dial is operated, the LCD panel illuminates for approx. 12 sec. (p). During normal flash photography and radio/optical transmission wireless multiple flash shooting (p.58/82), the LCD panel illuminates in green. For the LCD panel Illumination during radio transmission wireless multiple flash shooting, see page 72.

The flash settings will remain in effect even after the power is turned off.

To retain the settings when replacing the batteries, replace the batteries after turning off the power switch.

You can fire a test flash or turn on/off the focusing lamp while the power

switch is set to the <a> position. Also, when a button or dial is operated, the LCD panel illuminates.

You can disable Quick flash (P.Fn-05, p.105). Auto power off can be disabled (C.Fn-01, p.101). You can select the charging method to be used when an external power

source is used (C.Fn-12, p.102).

You can change the setting of the LCD panel illumination (C.Fn-22,

p.103).

You can change the color of the LCD panel illumination (P.Fn-04, p.104).

When you set the camera’s shooting mode to <d> (Program AE) or fully automatic mode, you can shoot in E-TTL II/E-TTL fully automatic flash mode.

: Fully Automatic Flash Photography

Set the flash mode to <a>.

Press the <E> button. Turn <9>, select <Q>, then

press <8>.

Check that <M> is not

displayed.

Focus on the subject.

Press the shutter button halfway to

focus.

X The shutter speed and aperture are

displayed in the viewfinder.

Check that <Q> is lit in the viewfinder.

Take the picture.

When you press the shutter button

completely, the flash will fire and the picture will be taken.

X If the standard flash exposure is

Flash exposure confirmation lamp

obtained, the flash exposure confirmation lamp lights for approx. 3 sec.

+ 98 hidden pages

Canon Macro Twin Light MT-26EX-RT Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Chapters

Conventions Used in this Manual

Contents

Index to Features

Safety Instructions

Nomenclature

Installing the Batteries

Attaching and Detaching the Control Unit to and from the Camera

Attaching and Detaching the Flash Unit to the Lens

Adjusting the Flash Unit

Turning on the Power