Please note the following: 1. Set the exposure mode to M mode. 2. Set the shutter speed lower than the value recommended in the manual of the flash. If the manual does not recommend any shutter speed, set it to 1/125 sec or slower. If it is set to a faster shutter speed than 1/125 sec., some flash may be out of sync with 3. Power off the flash before connecting it to the sync cord. 4. Please use a flash with a trigger voltage below 400V (both polarities). 5. Red-eye reduction and rear flash sync. cannot be used. 6. We recommend you to set "Custom White Balance".