Noise Reduction Features
Long Exposure Noise Reduction
For images exposed for 1 sec. or longer, noise (dots of light and banding) typical of long exposures can be reduced.
Select [: Long exp. noise reduction].
Set a reduction option.
For exposures of 1 sec. or longer, noise reduction is performed automatically if noise typical of long exposures is detected. This setting is effective enough in most cases.
Noise reduction is performed for all exposures of 1 sec. or longer. The [Enable] setting may reduce noise that cannot be detected with the [Auto] setting.
- With [Auto] or [Enable] set, noise reduction after you shoot may take as long as exposure for the shot.
- Images may look grainier with the [Enable] setting than with the [Disable] or [Auto] setting.
- With [Enable] set, shooting long exposures during Live View display will stop Live View display (and prevent your next shot) until the camera is finished with noise reduction, indicated by [BUSY] display. The Live View display will not appear until the noise reduction is complete. (You cannot take another picture.)
High ISO Speed Noise Reduction
This function reduces the noise generated in the image. This function is especially effective when shooting at high ISO speeds. When shooting at low ISO speeds, the noise in the darker parts of the image (shadow areas) can further be reduced.
Select [: High ISO speed NR].
Set the level.
 Multi Shot Noise Reduction
Applies the noise reduction with higher image quality than [High]. For a single photo, four shots are taken continuously and aligned and merged automatically into a single JPEG image.
If the image quality is set to RAW or RAW+JPEG, you cannot set [Multi Shot Noise Reduction].
[Multi Shot Noise Reduction] Precautions
- If there is significant misalignment in the image due to camera shake, the noise reduction effect may become smaller.
- Be careful about camera shake in handheld shots. Using a tripod is recommended.
- If you shoot a moving subject, the moving subject may leave afterimages.
- Auto image alignment may not function properly with repetitive patterns (lattice, stripes, etc.) or flat, single-tone images.
- If the subject's brightness changes as the four consecutive shots are taken, irregular exposure in the image may result.
- After shooting, it may take some time to record an image to the card after performing noise reduction and merging the images. “buSY” and “BUSY” appear in the viewfinder and on the screen, respectively, as images are processed. Shooting is not possible until processing is finished.
- [Multi Shot Noise Reduction] is not available with bulb shooting, shooting with AEB or white balance bracketing, shooting RAW or RAW+JPEG images, or with features such as long exposure noise reduction.
- Flash photography is not possible. Note that the AF-assist beam may be fired, depending on the [: AF-assist beam firing] setting.
- [Multi Shot Noise Reduction] is not available (not displayed) when recording movies.
- The camera automatically switches to [Standard] if you set the power switch to , replace the battery or card, or switch to Basic Zone modes, bulb exposure, or movie recording.