Pentax K-5 IIs Operating Guide

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Set the aperture value for controlling the depth of field. The depth of field 
is deeper and the front and back of the focused object is clear when the 
aperture is set to a large value, small lens opening. The depth of field 
is shallower and the front and back of the focused object is blurred 
when the aperture is set to a small value, large lens opening.
The shutter speed is automatically set to the proper exposure depending 
on the aperture value.
1
Set the mode dial to c.
• The shutter speed can be set in increments of 1/3 EV or 1/2 EV. Set the 
exposure steps in [1. EV Steps] of the [A Custom Setting 1] menu. (p.106)
• The proper exposure may not be obtained with the selected shutter speed 
when the sensitivity is not set to [ISO AUTO] (p.83).
Using the c Mode
Exposure Warning
If the subject is too bright or too dark, 
the aperture value will blink on the 
status screen and LCD panel and in 
the viewfinder. If the subject is too bright, choose a faster shutter 
speed. If it is too dark, choose a slower shutter speed. When the 
aperture value indication stops blinking, you can take a picture with 
proper exposure.
Use a commercially available ND (Neutral Density) Filter if the subject 
is too bright. Use a flash if it is too dark.
K-5 II_ENG.book  Page 95  Wednesday, October 10, 2012  1:20 PM