Canon 1dx Owners Manual

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D Flash Photography
  With an EZ/E/EG/ML/TL-series Speedlite set to A-TTL or TTL 
autoflash mode, the flash can be  fired at full output only. 
Set the camera’s shooting mode to < a> (manual exposure) or 
< f > (aperture-priority AE) and adjus t the aperture setting before 
shooting.
  When using a Speedlite that has manual flash mode, shoot in the 
manual flash mode.
Sync Speed
The camera can synchronize with non-Canon compact flash units at 
1/250 sec. and slower speeds. With large studio flash units, since the 
flash duration is longer than compact flash units, set the sync speed 
within 1/125 sec. to 1/30 sec. Be sure  to test the flash synchronization 
before shooting.
PC Terminal
  The camera’s PC terminal can be 
used with flash units having a sync 
cord. The PC terminal is threaded to 
prevent inadvertent disconnection.
  The camera’s PC terminal has no 
polarity. You can connect any sync 
cord regardless of its polarity.
Cautions for Live View shooting
If you use a non-Canon flash unit with Live View shooting, set [ z4: 
Silent LV shoot. ] to [Disable] (p.208). The flash will no t fire if it is set to 
[Mode 1] or [Mode 2].
Using Non-EX-series Canon Speedlites
Using Non-Canon Flash Units
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D Flash Photography
  If the camera is used with a flash  unit or flash accessory dedicated to 
another camera brand,  the camera may not operate properly and 
malfunction may result.
  Do not connect to the ca mera’s PC terminal any flash unit requiring 250 
V or more.
  Do not attach a high-voltage flash un it on the camera’s hot shoe. It may 
not fire.
A flash unit attached to the camera’s  hot shoe and a flash unit connected to 
the PC terminal can both  be used at the same time.
Metered Manual Flash ExposureThis function is for close-up flash photography wh en you want to set the 
flash level manually. Use an  18% gray card and an EX-series Speedlite with 
manual flash mode. Follow  the instructions below:
1. Set the camera and Speedlite settings. • Set the camera’s sh ooting mode to  or < f>.
• Set the Speedlite to manual flash mode.
2. Focus the subject. • Focus manually.
3. Set up the 18% gray card. • Place the gray card at the subject’s position.
• In the viewfinder, the entire spot me tering circle should cover the gray 
card.
4. Press the < B> button. ( 8)
5. Set the flash  exposure level.
• Adjust the Speedlite’s manual  flash level and the camera 
aperture so that the flash ex posure level aligns with the 
standard expo sure index.
6. Take the picture. • Remove the gray card  and take the picture.
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With an EX-series Speedlite having compatible flash function settings, 
you can use the camera’s menu screen to set the Speedlite’s functions 
and Custom Functions.  Attach the Speedlite to the camera and turn 
on the Speedlite.
For details on the Speedlite’s func tions, refer to the Speedlite’s 
instruction manual.
1Select [External Speedlite 
control].
 Under the [z 3] tab, select [External 
Speedlite control ], then press .
X The external Speedlite control screen 
will appear.
2Select the desired item.
  Select the menu option to be set, then 
press < 0>.
To enable flash photography, set 
[Enable ]. To enable only the AF-assist 
beam to be emitted, set [ Disable].
For normal flash exposures, set it to 
[Evaluative ]. If [Average ] is set, the 
flash exposure will be averaged for the 
entire metered scene. Flash exposure 
compensation may be necessary. This 
setting is for advanced users.
3  Setting the Flash
[Flash firing]
[E-TTL II meter.]
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3 Setting the Flash
You can set the flash-sync speed for 
flash photography in the aperture-priority 
AE (f) mode.
  : Auto
The flash sync speed is set automatically within a range of 1/250 
sec. to 30 sec. to suit the scene’s brightness. High-speed sync is 
also possible.
  : 1/250-1/60 sec. auto
Prevents a slow shutter speed from  being set in low-light conditions. 
It is effective for preventing subject blur and camera shake. 
However, while the subject will be properly exposed with the flash, 
the background may come out dark.
  : 1/250 sec. (fixed)
The flash-sync speed is fixed at 1/250 sec. This more effectively 
prevents subject blur and camera shake than with [ 1/250-1/60 sec. 
auto ]. However, in low light, the subject’s background will come out 
darker than with [ 1/250-1/60 sec. auto ].
[Flash sync. speed in Av mode]
If [1/250-1/60 sec. auto] or [ 1/250 sec. (fixed)] is set, high-speed sync is 
not possible in the < f> mode.
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3 Setting the Flash
The information and available functions displayed on the screen 
will differ depending on the Speedlite, current flash mode, flash 
Custom Function settings, etc.
For details on your Speedlite’s flash  functions, refer to the Speedlite’s 
instruction manual.
Sample display
 Flash mode
You can select the flash mode to suit your desired flash shooting.
[E-TTL II flash metering] is the standard 
mode of EX-series Speedlites for 
automatic flash shooting.
The [ Manual flash ] mode is for setting 
the Speedlite’s [ Flash output level] 
yourself.
For other flash modes, refer to the 
Speedlite’s instruction manual.
[Flash function settings]
Flash mode Flash zoom 
(Flash coverage)
Flash exposure 
compensation
Wireless functions
Shutter
synchronization Flash exposure 
bracketing
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3 Setting the Flash
 Wireless functions
Wireless (multiple) flash shooting is 
possible with radio or optical 
transmission. For details on wireless 
flash, refer to the Speedlite’s instruction 
manual.
  Flash zoom (Flash coverage)
With Speedlites having a zooming flash 
head, you can set the flash coverage. 
Normally, set this to [AUTO] so that the 
camera will automatically set the flash 
coverage to match the lens focal length.
  Shutter synchronization
Normally, set this to [First-curtain 
synchronization] so that the flash fires 
immediately after the exposure starts.
If [ Second-curtain synchronization ] is set, the flash will fire right 
before the shutter closes. When this  is combined with a slow shutter 
speed, you can create a trail of light such as from car headlights at 
night. With Second-curtain synchroni zation, two flashes will be fired: 
Once when you press the shutter button completely, and once 
immediately before the exposure ends.
If [ High-speed synchronization ] is set, the flash can be used at all 
shutter speeds. This is especially ef fective for portraits using fill flash 
when you want to give priority to the aperture setting.
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3 Setting the Flash
 Flash exposure compensation
The same setting as “Flash exposure 
compensation” on page 190 can be set.
For details, refer to the Speedlite’s 
instruction manual.
  Flash exposure bracketing
While the flash output is changed 
automatically, three shots are taken.
For details on FEB (Flash Exposure 
Bracketing), refer to the Speedlite’s 
instruction manual.
When using second-curtain synchronizat ion, set the shutter speed to 1/25 
sec. or slower. If the sh utter speed is 1/30 sec. or faster, first-curtain 
synchronization will be applied even if [ Second-curtain synchronization] 
is set.
  By selecting [ Clear flash settings ], you can revert the flash settings to 
their defaults.
  With an EX-series Speedlite not compatible with  flash function settings, 
you can only set  the following: [Flash firing], [E-TTL II meter. ], and 
[ Flash exposure compensation ] under [Flash functi on settings]. 
([ Shutter synchronization ] can also be set with certain EX-series 
Speedlites.)
  If flash exposure compensation is set with the Speedlite, you cannot set 
the flash exposure compensation  on the camera (with the  
button or flash function settings). If  it is set with both the camera and 
Speedlite, the Speedlite’s se tting overrides the camera’s.
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3 Setting the Flash
For details on the Speedlite’s Custom  Functions, refer to the Speedlite’s 
instruction manual.
1Select [Flash C.Fn settings].
  Select [Flash C.Fn settings ], then 
press < 0>.
2Set the functions.
  Turn the < 5> dial to select the 
number, then press < 0>.
  Turn the < 5> dial to select the menu 
option, then press < 0>.
Selecting [Clear all Speedlite C.Fn’s ] will clear all the Speedlite’s 
Custom Function settings (except [ C.Fn-00: Distance indicator 
display ]).
Flash Custom Function Settings
Clearing Flash Custom Function Settings
With an EX-series Sp eedlite, if the [Flash metering mode ] Custom 
Function is set to [ TTL] (autoflash), the Speedlite  will always fire at full 
output.
The Speedlite’s Personal Functions (P.F n) cannot be set or canceled with 
the camera’s [ External Speedlite control ] screen. Set it with the Speedlite.
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Shooting with the LCD Monitor
(Live View Shooting)
You can shoot while viewing the image on the camera’s 
LCD monitor. This is called “Live View shooting”.
Live View shooting is effecti ve for photos of still subjects.
If you handhold the camera and shoot while viewing the 
LCD monitor, camera shake  can cause blurred images. 
Using a tripod is recommended.
About Remote Live View ShootingWith EOS Utility (provided softwa re, p.410) installed in your 
computer, you can connect the ca mera to the computer and shoot 
remotely while viewing  the computer screen. For details, refer to 
the Software Instruction Ma nual (p.412) on the CD-ROM.
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During Live View shooting, you can take still photos. To shoot movies, 
see page 219.
1Select [LV z/k  set.].
 Under the [ z4] tab, select [LV   z/
k  set.], then press < 0>.
  “LV” stands for Live View.
2Select [Stills].
 Turn the < 5> dial to select [ Stills], 
then press < 0>.
3Display the Live View image.
  Press the < A> button.
X The Live View image will appear on 
the LCD monitor.
  The Live View image will closely 
reflect the brightness level of the 
actual image you capture.
  If the standard exposure has not 
been obtained, turn the < 6> or 
< 5 > dial to adjust it.
A  Preparing for Live View Shooting
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