topic Re: 40D built in flash fires but no effect on photo in EOS DSLR & Mirrorless Cameras

40D built in flash fires but no effect on photo

callananphoto — Sun, 01 May 2016 09:56:37 GMT

My 40Ds built in flash fires but it has no effect on the photograph. The flash seems to be out of scync with shutter. It does fire for each photo as well as focusing. I've tried different lens. I've cleared all camera settings and the problem is still there. Need help

Re: 40D built in flash fires but no effect on photo

Peter — Sun, 01 May 2016 11:41:26 GMT

Slower shutter speed than 1/200 sec?

Re: 40D built in flash fires but no effect on photo

jrhoffman75 — Sun, 01 May 2016 12:06:51 GMT

How do you know it isn't having an effect? What are you photographing? What camera mode/settings?

Re: 40D built in flash fires but no effect on photo

callananphoto — Sun, 01 May 2016 15:56:40 GMT

I know it is not having the expected effect as I have been using it for some years now and have got to know what to expect when it is used. It does not work in any mode. Even in Auto mode.

Re: 40D built in flash fires but no effect on photo

callananphoto — Sun, 01 May 2016 15:57:28 GMT

It doesnt work correctly at any shutter speed

Re: 40D built in flash fires but no effect on photo

jrhoffman75 — Sun, 01 May 2016 23:12:31 GMT

Since you have verified that all settings are the same when the flash performed correctly and now it doesn't it must be a camera defect.

Try resetting all camera settings to default, and if that doesn't work it looks like service is necessary.