Canon ETTL flash with camera in M (manual) mode

Archived from groups: rec.photo.digital.slr-systems (More info?)

> My question to this group is: Is this also the way Canon
> DSLRs (20D, 350D) works, or is there a setting on these
> that let you retain ETTL with the flash with the camera
> set to M?

My Rebel XT, with a Sigma 500 DG Super, does retain E-TTL functionality
in manual mode, which is rather nice, as it lets me be lazy in a pinch - I
can just set the shutter at 1/200, the aperture at f/8, and let the E-TTL
metering adjust the flash power to make things work out, provided I'm not
outside the range of the flash at f/8. On the other hand, I can put the
flash into manual mode, do the math, and set things myself if I feel like
it.

steve

Archived from groups: rec.photo.digital.slr-systems (More info?)

Another way to look at it is the G5 gives you the ability to use full
manual flash. This can be handy, and I wouldn't mind this capability
with my 20D.

Anyway as others have said the DSLR's retain full E-TTL flash in M mode.

Oh, and about the long shutter speed issue in Av-mode. This can be fixed
by setting the menu item "Slow synchro" to "Off". At least that's how it
works on the G3, I'm assuming the G5 would be the same.

If you're hoping to get better flash metering with a DSLR, I suspect you
would be dissapointed. I get far more accurate flash metering with my
420EX connected to my G3 than I do with my 20D. The "slow synchro" thing
should solve all of your ETTL woes, and then everything should work a treat.


> On my Powershot G5, the P, Av and Tv mode insists on using
> the flash in "fill" mode. I.e. Av-mode gives me too long
> shutter speed, Tv-mode mode gives me a too wide aperture,
> and P-mode messes up both.
>
> Hoping that using M-mode (manual) would fix this, I turned
> the mode dial on the camera to M, set shutter speed and
> aperture, and made sure that the flash (550EX) still was
> in ETTL-mode, and pressed the shutter release.
>
> What happened was that the flash fired at full power.
>
> As far as I am able to tell, with the G5 you lose the
> ability to use ETTL to control flash output when you
> switch the camera to M-mode.
>
> My question to this group is: Is this also the way Canon
> DSLRs (20D, 350D) works, or is there a setting on these
> that let you retain ETTL with the flash with the camera
> set to M?
>
> And of course - if I've goofed up and overlooked a setting
> on my G5, I would love to hear about it!

Archived from groups: rec.photo.digital.slr-systems (More info?)

The 420EX doesn't have a manual mode.

>>Another way to look at it is the G5 gives you the ability to use full
>>manual flash. This can be handy, and I wouldn't mind this capability
>>with my 20D.
>
>
> You have it. Just put the flash in manual mode!
>
> : )
>
> steve
>
>