Reducing Image Noise (Noise Reduction) - Pentax K-5 Operating Manual

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Reducing Image Noise (Noise Reduction)

When shooting with a digital camera, image noise (image roughness or
unevenness) becomes noticeable in the following situations.
- when shooting with a long exposure
- when shooting with a high sensitivity setting
- when the temperature of the CMOS sensor is high
You can reduce image noise by using Noise Reduction. However, images
shot with Noise Reduction will take longer to save.
High-ISO NR
4
Reduces noise at high sensitivity (ISO) settings.
1
Select [High-ISO NR] in the [A Rec. Mode 3] menu and
press the four-way controller (5).
The [High-ISO NR] screen appears.
2
Press the four-way controller (5)
and use the four-way controller
(23) to select [Auto], [Off],
[Low], [Medium], [High] or
[Custom].
Auto
Off
Low/Medium/High
Custom
3
Press the 4 button.
If you select [Auto], [Off], [Low], [Medium], or [High], proceed to Step 7.
Applies Noise Reduction at optimally calculated
levels throughout ISO range. (default setting)
Does not apply Noise Reduction at any ISO setting.
Applies Noise Reduction at constant chosen level
throughout ISO range.
Applies Noise Reduction at user-defined levels for
each ISO setting.
High-ISO NR
ISO
Auto
AUTO
NR
ISO
Off
OFF
NR
ISO Low
NR
ISO
Medium
NR
ISO
High
NR
ISO Custom
CUSTOM
NR
MENU Cancel OK OK