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Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1
  
 
pompo
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p.1 #1 · p.1 #1 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Has anyone been able to successfully use the Sekonic Speedmaster L-858D in Hi-S with the Profoto B1.
If i set the strobe in HSS it does not measure the light and it just blinks the word “UNDER”.

I am going back and forth between Profoto and Sekonic USA and Japan, Profoto says Sekonic needs to adjust the meter, Sekonic said it's Profoto strobe problem due to the pre-flashes. So here I am with a $700 meter ( which don't work in HSS). The reason I bought it was specifically for these Profoto strobes in Hi-S!

Edited on May 22, 2017 at 03:13 AM · View previous versions



May 21, 2017 at 04:50 AM
kdphotography
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p.1 #2 · p.1 #2 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Is the B1 set to manual?


May 21, 2017 at 03:04 PM
pompo
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p.1 #3 · p.1 #3 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Yes it's on manual


May 21, 2017 at 03:08 PM
Gust
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p.1 #4 · p.1 #4 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


mhh, that sounds no good.
I'm intend to buy this Sekonic for the same work.
tell us please the results



May 21, 2017 at 04:50 PM
pompo
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p.1 #5 · p.1 #5 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


I'll update, Sekonic Japan told me to send a screenshot in Flash Duration Mode of the wave form generated by the B1, which I did. Hopefully they'll be able to do some kind of firmware update.


May 21, 2017 at 04:58 PM
 

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tedwca
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p.1 #6 · p.1 #6 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Why would the Profoto have 'PREFLASHES' in manual mode? I know the HSS is a series of pulsed light, but only TTL uses pre flash AFAIK. I admit I don't know the B1 very well though.


May 21, 2017 at 06:07 PM
pompo
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p.1 #7 · p.1 #7 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


tedwca wrote:
Why would the Profoto have 'PREFLASHES' in manual mode? I know the HSS is a series of pulsed light, but only TTL uses pre flash AFAIK. I admit I don't know the B1 very well though.


Profoto wording in a reply when I asked about B1 if they have pre-flashes " Yea there are pre flashes but there MS long and happens with the standard flash behind it"

In Hi-S I guess there are multiple bursts they aren't actually pre-flashes but part of the whole flash (?)



May 21, 2017 at 06:12 PM
pompo
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p.1 #8 · p.1 #8 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Gust wrote:
mhh, that sounds no good.
I'm intend to buy this Sekonic for the same work.
tell us please the results


So here is the latest, with Profoto B1 in Hi-S mode, the strobe has to be fired by the camera for the meter to work, not by the test button on the Air Remote or on the strobe itself. That's it it. I wish so bad you can just trigger the strobe with the meter!


Edited on May 24, 2017 at 03:56 PM · View previous versions



May 22, 2017 at 05:13 PM
Gust
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p.1 #9 · p.1 #9 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


good news.
btw I hope they working on a new trigger for the new meter.



May 24, 2017 at 03:38 PM
story_teller
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p.1 #10 · p.1 #10 · Sekonic Speedmaster L-858D dont work in HSS w/ profoto B1


Just to clarify. There are no pre-flashes when you're using Profoto strobes in manual. That would cause a big problem with slave strobes firing prematurely.

I have a Sekonic L-358 that works fine (in "Cordless Flash" mode) with Profoto D1's, D2's and B-1's in manual at normal synch speed (Air TTL remote in my hand to fire the strobes).

In order to go into Hi-S mode, the Air TTL remote has to be on the camera so it can read the camera shutter speed, but I can successfully measure the flash with my L-358 in "Cordless Flash" mode (fired via camera). No pre-flashes were detected in manual Hi-S flash mode and I could meter the flash.

I used 1/1000 at ISO 100 on the camera and L-358 (maxes out at 1/1000 for flash) for all the tests and the Hi-S readings were decent, but needed to be tweaked at bit.



May 29, 2017 at 03:44 PM







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