i: Setting the ISO SpeedN

ISO Speed Guide

ISO Speed

Shooting Situation

Flash Range

(No flash)

 

 

L, 100 - 200

Sunny outdoors

The higher the ISO speed,

400 - 800

Overcast skies, evening

the farther the flash range

 

 

will be.

1600 - 6400, H1, H2

Dark indoors or night

 

 

 

If [8C.Fn II -3: Highlight tone priority] is set to [1: Enable], “L” (equivalent to ISO 50), ISO 100/125/160, “H1” (equivalent to ISO 12800) and “H2” (equivalent to ISO 25600) cannot be set (p.196).

Using a high ISO speed or shooting in high-temperature conditions may result in more grainy images. Long exposures can also cause irregular colors in the image.

When you shoot at high ISO speeds, horizontal stripes may appear as noise.

With [8C.Fn I -3: ISO expansion] set to [1: On], “L” (equivalent to ISO 50), “H1” (equivalent to ISO 12800), and “H2” (equivalent to ISO 25600) can also be set (p.193).

About “A” (Auto) ISO Speed

If the ISO speed is set to “A”, 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

ISO Speed Setting

1/C/d/s/f

ISO 100 - 3200

 

 

a/ F

Fixed at ISO 400

 

 

With flash

Fixed at ISO 400*

 

 

* If fill flash results in overexposure, ISO 100 or a higher ISO will be set.

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