Sekonic Meters & Canon Speedlite HSS - compatible?

FlyingPhotog wrote in post #12430279
I'm always looking to learn but how is this possible if the pre-flash trips the meter before the flash actually fires?

Is there a setting on the 358 that tells it to ignore the pre-flash?

I have a L-358. I've yet to see if there's such a function.

bobbyz wrote in post #12430844
Sorry worng choice of workds on my part, I meant HSS Mode not eTTL mode. But even in eTTL mode if using AC3 with mini/flex you can make exact changes in power settings just like manual flash.

Canon's High Speed Sync is one of its ETTL mode functions.

There is no way that I am aware of that a handheld meter such as the Sekonic L-358 can measure the output of a Speedlite when using the HSS feature and I do not believe that there is any way that you can control the output of the Speedlite in that mode.

SkipD wrote in post #12432180
Canon's High Speed Sync is one of its ETTL mode functions.

There is no way that I am aware of that a handheld meter such as the Sekonic L-358 can measure the output of a Speedlite when using the HSS feature and I do not believe that there is any way that you can control the output of the Speedlite in that mode.

Skip you don't have to belive it but that is what it is. Try yourself like Robert already mentioned. The meter works fine with flash in HSS mode.

Regarding controlling power output of speedlite in HSS/eTTL you need to read up on new stuff like pocket wizard mini/flex and AC3. With AC3 I can control bunch of eTTL flashes in 1/3 stop increments just like having them in the manual flash mode. There is no pop to pop power varition just like in manual flash mode even thought flash in is eTTL mode. You can put white or black thing in front of the camera and flash will put out same power.

Here;

http://www.pocketwizar​d.com …ver/ac3%20zonec​ontroller/

bobbyz wrote in post #12432695
Regarding controlling power output of speedlite in HSS/eTTL you need to read up on new stuff like pocket wizard mini/flex and AC3. With AC3 I can control bunch of eTTL flashes in 1/3 stop increments just like having them in the manual flash mode. There is no pop to pop power varition just like in manual flash mode even thought flash in is eTTL mode. You can put white or black thing in front of the camera and flash will put out same power.

I was assuming that the discussion, as started by the OP, was referring to using a Speedlite either on a camera or directly connected to the camera via wire rather than adapting additional hardware. You've introduced a LOT more than the OP was asking about.

^Bobby,
So using a speedlite in HSS mode, controled by an AC3 in M mode, I can meter fast Shutter Speed reading with a Sekonic meter? Like 1/800 SS or so?

SkipD wrote in post #12432725
I was assuming that the discussion, as started by the OP, was referring to using a Speedlite either on a camera or directly connected to the camera via wire rather than adapting additional hardware. You've introduced a LOT more than the OP was asking about.

No, i was always talking about using a speedlite off camera, controlled by PW, and controlled specificlly by an AC3 in manual mode.

Sorry if I wasn't clear enough.

I have been agonizing on how to properly meter using my Sekonic Meter using my 580EX II speedlight.

I understand that ETTL modde should not be used. So in that case do you need to set the Speedlight to "M" 1/1 to get a proper reading? Of course the camera body is set on Manual Mode as well.

I had originaly thought I could have my Speedlight set to "External Metering: Auto" and get a proper reading but apparently this is wrong...

BTW this is using a Sekonic L-358 AND A 580EXII on a 7d.

Here are my thoughts and opinions.

If you take the time to set up your Speedlite or Speedlites off camera and measure the exposure carefully using a flash meter, anything but setting the flash (and camera) to manual, will defeat the purpose of careful exposure measurement and flash placement.

^^ completely agreed

but I'm not asking about ETTL. I never was. My OP never mentioned ETTL.

Only HSS (which I control in manual mode).

My basic question, which still hasn't been answered/unclear is can a meter read a HSS burst ?

It most certainly has been answered. You can meter up to the meter's maximum shutter speed. That's the answer. Beyond that you simply calculate the exposure. Simple.

m.shalaby wrote in post #12432903
^^ completely agreed

but I'm not asking about ETTL. I never was. My OP never mentioned ETTL.

Only HSS (which I control in manual mode).

My basic question, which still hasn't been answered/unclear is can a meter read a HSS burst ?

Your original post never mentioned PWs so I think folks assumed that you were either on camera or wired.

TMR Design wrote in post #12432951
It most certainly has been answered. You can meter up to the meter's maximum shutter speed. That's the answer. Beyond that you simply calculate the exposure. Simple.

What Rob is saying above and said earlier has been my experience with metering in HSS mode. See the emphasis I added above.

And, as my signature line says, I learn something new virtually every day.

TMR Design wrote in post #12432951
It most certainly has been answered. You can meter up to the meter's maximum shutter speed. That's the answer. Beyond that you simply calculate the exposure. Simple.

Gotcha. Thanks. Do you know the off the top of your head the max speed for the L308S ?

m.shalaby wrote in post #12432903
^^ completely agreed

but I'm not asking about ETTL. I never was. My OP never mentioned ETTL.

Only HSS (which I control in manual mode).

My basic question, which still hasn't been answered/unclear is can a meter read a HSS burst ?

I just did a quick test.. 50D with 430EX II hotshoe mounted at 1000th second, flash on HSS and in manual.. Yes my L-358 did take an accurate flash meter reading (at 1 metre)..