Setting the ISO Speed. Canon EOS 5DS, EOS 5DS R

i

: Setting the ISO Speed

N

Set the ISO speed (image sensor’s sensitivity to light) to suit the ambient light level. With the <

A

> mode selected, the ISO speed will

be set automatically (p.160).

Regarding the ISO speed during movie shooting, see pages 283 and

287.

1

Press the <

m

> button.

(

9

)

2

Set the ISO speed.



While looking at the LCD panel or in the viewfinder, turn the <

6

> dial.



ISO speed can be set within ISO 100

- ISO 6400 in 1/3-stop increments.



“

A

” indicates Auto ISO. The ISO speed will be set automatically

(p.160).

ISO Speed Guide

ISO speed

L, ISO 100 - ISO 400

ISO 400 - ISO 1600

ISO 1600 - ISO 6400, H

Shooting Situation

(No flash)

Sunny outdoors

Overcast skies or evening time

Dark indoors or night

* High ISO speeds will result in grainier images.

Flash Range

The higher the ISO speed, the farther the flash range will be.

158

i

: Setting the ISO Speed

N



As H (equivalent to ISO 12800) is an expanded ISO speed setting, noise

(dots of light, banding, etc.) and irregular colors will be more noticeable, and the resolution lower than usual.



As L (equivalent to ISO 50) is an expanded ISO speed setting, the dynamic range will be somewhat narrower than usual.



If [ z

3: Highlight tone priority

] is set to [

Enable

] (p.187), L (equivalent

to ISO 50), ISO 100/125/160, and H (equivalent to ISO 12800) cannot be selected.



Shooting in high temperatures may result in images that look grainier.

Long exposures can also cause irregular colors in the image.



When you shoot at high ISO speeds, noise (such as dots of light and banding) may become noticeable.



When shooting in conditions that produce an extreme amount of noise, such as a combination of high ISO speed, high temperature, and long exposure, images may not be recorded properly.



If you use a high ISO speed and flash to shoot a close subject, overexposure may result.

Under [ z

2: ISO speed settings

], you can use [

ISO speed range

] to expand the settable ISO speed range from L (equivalent to ISO 50) to H

(equivalent to ISO 12800) (p.161).

159

i

: Setting the ISO Speed

N

Auto ISO

If the ISO speed is set to “

A

” (Auto), the actual ISO speed to be set will be displayed when you press the shutter button halfway.

As indicated below, the ISO speed will be set automatically to suit the shooting mode.

Shooting Mode

No Flash

A

ISO 100 - ISO 3200 d

/ s

/ f

/ a

ISO 100 - ISO 6400

*1

F

ISO 400

*1

ISO Speed Setting

With Flash

ISO 100 - ISO 1600

ISO 400

*1*2*3

*1: The actual ISO speed range depends on the [

Minimum

] and [

Maximum

] settings set in [

Auto ISO range

].

*2: If fill flash will cause overexposure, ISO speed may be reduced, down to a possible minimum of ISO 100 (except in the < a

> and <

F

> modes).

*3: In the < d

> mode, if the external Speedlite is set for bounce flash, ISO 400 -

ISO 1600 will be set automatically.

160

i

: Setting the ISO Speed

N

3

Setting the Manually-Settable ISO Speed Range

You can set the manually-settable ISO speed range (minimum and maximum limits). You can set the minimum limit within L (equivalent to

ISO 50) to ISO 6400, and the maximum limit within ISO 100 to H

(equivalent to ISO 12800).

1

Select [ISO speed settings].



Under the [ z

2

] tab, select [

ISO speed settings

], then press <

0

>.

2

Select [ISO speed range].

3

Set the minimum limit.



Select the minimum limit box, then press <

0

>.



Select the ISO speed, then press

<

0

>.

4

Set the maximum limit.



Select the maximum limit box, then press <

0

>.



Select the ISO speed, then press

<

0

>.

5

Select [OK].

161

i

: Setting the ISO Speed

N

3

Setting the ISO Speed Range for Auto ISO

You can set the automatic ISO speed range for Auto ISO within ISO 100

- ISO 6400. You can set the minimum limit within ISO 100 - ISO 3200, and the maximum limit within ISO 200 - ISO 6400 in 1-stop increments.

1

Select [Auto ISO range].

2

Set the minimum limit.



Select the minimum limit box, then press <

0

>.



Select the ISO speed, then press

<

0

>.

3

Set the maximum limit.



Select the maximum limit box, then press <

0

>.



Select the ISO speed, then press

<

0

>.

4

Select [OK].

162

The [

Minimum

] and [

Maximum

] settings will also be applied to the ISO

speed safety shift’s minimum and maximum ISO speeds (p.405).

i

: Setting the ISO Speed

N

3

Setting the Minimum Shutter Speed for Auto ISO

You can set the minimum shutter speed so that the shutter speed set automatically will not be too slow when Auto ISO is set.

This is convenient in the < d

> and < f

> modes when you use a wideangle lens to shoot a moving subject or when you use a telephoto lens.

It helps to reduce camera shake and blurred subjects.

1

Select [Min. shutter spd.].

Automatically set

Manually set

2

Set the desired minimum shutter speed.



Select [

Auto

] or [

Manual

].



If you select [

Auto

], turn the <

6

> dial to set the desired speed, slower or faster, compared to the standard speed, then press <

0

>.



If you select [

Manual

], turn the <

6

> dial to select the shutter speed, then press <

0

>.



If a correct exposure cannot be obtained with the maximum ISO speed limit set with [

Auto ISO range

], a shutter speed slower than the [

Min. shutter spd.

] will be set to obtain a standard exposure.



This function will not be applied to flash and movie shooting.

When [

Auto: 0

] is set, the minimum shutter speed will be the reciprocal of the lens focal length. A single step from [

Slower

] to [

Faster

] is equivalent to a single shutter speed stop.

163