Optimizing focus
When the camera cannot auto focus, the focus brackets turn red. This indicates the picture may be out of focus because the subject is out of the focus range or the scene has low contrast.
If you are recording a video or taking a picture with a shooting mode (see Using the shooting modes on page 16) other than 
For pictures and video clips: If the scene has low contrast, use Focus Lock (see Using Focus Lock on page 13) and aim at a point on the subject that has more colors or crisp edges.
For pictures only:
●Select a shooting mode more appropriate for the scene you are capturing (see Using the shooting modes on page 16).
●If the subject is too close (less than 100 mm or 4.7 in), move farther away from the
subject or use 
If the camera is set to 
●Move within the 
camera to 
Auto (see Auto under Using the shooting modes on page 16).
●In low contrast scenes, use Focus Lock (see Using Focus Lock on page 13).
Using Focus Lock
Use Focus Lock to focus on a subject that is not in the center of the picture, to capture action shots more quickly by
1.Frame the subject for your picture within the focus brackets. In low light or low contrast situations, frame a brighter or higher contrast object.
2.Press the Shutter button halfway down.
3.Hold the Shutter button halfway down and re- frame.
4.Press the Shutter button all the way down to take the picture.
Optimizing exposure
When you are taking a picture and press the Shutter button halfway down, the camera also measures the light level to set the proper exposure.
HP Photosmart R837 Digital Camera | 13 |