Sony SLT-A57 &alpha Handbook page 192

The shutter does not release.
• You are using a memory card with a write-protect switch, and the switch is
set to the LOCK position. Set the switch to the recording position.
• Check the free capacity of the memory card.
• You cannot record images while charging the built-in flash (pages 42, 128).
• In autofocus mode, the shutter cannot be released when the subject is out of
focus.
• The lens is not attached properly. Attach the lens properly (page 24).
• When the camera is attached to another device, such as an astronomical
telescope, set [Release w/o Lens] to [Enable] (page 162).
• The subject may require special focusing (page 110). Use the focus-lock or
manual focus function (pages 111, 116).
Recording takes a long time.
• The noise reduction function is turned on (page 161). This is not a
malfunction.
• You are shooting in RAW mode (page 159). Since the RAW data file is
large, the RAW mode shooting may take time.
• The Auto HDR is processing an image (page 131).
The same image is shot several times.
• The drive mode is set to [Cont. Shooting] or [Bracket: Cont.]. Set it to
[Single Shooting] (pages 46, 144).
• The exposure mode is set to Continuous Advance Priority AE Mode (pages
41, 93).
• The exposure mode is set to Superior Auto and [S. Auto Image Extract.] is
set to [Off] (page 88).
The image is out of focus.
• The subject is too close. Check the minimum focal distance of the lens.
• You are shooting in manual focus mode, set the focus mode switch to AF
(autofocus) (page 109).
• When the focus mode switch is equipped with the lens, set it to AF.
• Ambient light is insufficient.
Eye-Start AF does not work.
• Set [Eye-Start AF] to [On] (page 80).
• Press the shutter button halfway down.
192
Troubleshooting