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Flashes, CHDK and Canon Powershot SX40 HS

Started Aug 2, 2013 | Discussions thread
PhilM oz Senior Member • Posts: 1,350
Re: Flashes, CHDK and Canon Powershot SX40 HS

gt13013 wrote:

Since the internal flash of the SX40 does not behave the same way, perhaps a Canon compatible flash would behave as the internal flash, and in that case I will buy it.

Both the 580EX and 90EX work correctly (same as internal flash).
I suspect any Canon flash that supports ETTL will work the way you want.

With the latest version of CHDK you can also enable ETTL flash mode when the camera is set to M mode. The Canon menu only allows manual flash power setting; but CHDK can override this to allow the flash power to be calculated during the shot.

Phil.

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