File :-(, x, )
Anonymous
hey guys I have a problem hopefully someone will no the answer, just got a 400d (Rebel XTi) and i cant figure out how to get the flash to sync with the 2nd curtain ONLY when i turn on the custom function for second curtain it flashes at both first and second curtains dunno if this is the same for 350d or 300d owners but all help and suggestions will be appreciated
>> des
>>33963
Is the first flash actually flash or just AE pre-flashing?
>> Anonymous
op here. im not sure it appears to be an actual flash. it seems kinda strange considering that canons e-ttl system can do the AE flash virtually at the same time as the flash as a small pulse beforehand and it also seems odd as particularly with longer exposures the exposure for the flash will have changed by the end of the exposure i.e. using rear curtain flash sync to freeze a moving subject over 2 or 3 seconds the exposure will have changed as the subject moves closer or further away
>> Anonymous
btw i dont know if this is also happening with external flash units. i havent had a chance to try any flashes other than the built in pop up one
>> Anonymous
>>33963
In English, please? And you could try reading the manual, it's probably in there. Also, are you using the onboard flash, or an external one?
>> Anonymous
It's a metering type of flash (or the one that 33963 mentions), for proof use the mirror lockup. The first flash occurs before the mirror locks up out of the way so it cannot possibly affect the exposure.
>> Anonymous
     File :-(, x)
>>34029

And just to prove that, and perhaps point out that reading the manual is sometimes a good thing. Here is what it says for a 350D.

Camera-Specific Properties:Equipment MakeCanonCamera ModelCanon EOS 350D DIGITALLens Size28.00 - 135.00 mmFirmware VersionFirmware 1.0.3Owner NameunknownSerial Number1230710292Image-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2007:01:12 10:27:07Exposure Time1/60 secF-Numberf/5.6Exposure ProgramNormal ProgramISO Speed Rating100Lens Aperturef/5.6Exposure Bias-1/3 EVFlashFlash, CompulsoryFocal Length105.00 mmColor Space InformationsRGBImage Width3456Image Height2304RenderingNormalExposure ModeAutoScene Capture TypeStandardExposure ModeProgramFocus TypeAutoMetering ModeEvaluativeSharpnessHighSaturationHighContrastHighShooting ModeManualImage SizeLargeFocus ModeOne-ShotDrive ModeContinuousFlash ModeOnCompression SettingFineMacro ModeNormalWhite BalanceAutoExposure Compensation2Sensor ISO Speed160Camera Actuations609288428Color Matrix0