« on: September 11, 2014, 05:49:57 AM »
Good to exchange ideas with you again, yes I remember and have been following your pursuit of Nikon-system consistency for Odin implementation here and on FM forums. In fact, your test descriptions made me dig out my Odin for some "quality time", which I am embarrassed to admit I did not put in when I got the kit. I have a TCU, three Odin rcvrs, and one Strato2 (at the time I planned to use speedlights and a 2000WS Norman pack for interiors.) Now that I have the Einsteins and their dedicated receivers I haven't needed the Phottix triggers very often. The arrival of the Mitros+ got me thinking about adding one of those to my speedlight kit, so --- testing!
OK, back to my rant/questions.
All my testing occurred right after upgrading to the v1.24 firmware.
I had forgotten that "TTL" systems were based on in-body analysis. Duh! Years ago I did a lot of editorial work with those Vivitars and Sunpacks that watched the scene in front of them and STOPPED the flash when the head saw enough light for the chosen setting. I didn't "reset" my head (no pun intended) and realize that speedlights in modern TTL were just emitters -- smart emitters -- but their position in relation to the photo subject was not used directly for info input. Therefore the speedlight could be buried in a softbox and the camera would analyze the light shed -- from all emitters -- on the subject in the preflash.
I read more after my post and got good at pushing test on the TCU and resetting the Sekonic for the "real" flash 2.5 seconds later. I checked with Sekonic and they confirmed that my L558 will reset for the next strobe flash within about a second. THIS IS INTERESTING: the tech told me that even though the meter reads the light "seen" during the pre-flash it will ignore that reading after reset -- without clearing the meter info screen --and give me a clean reading of the full-strength pulse. He felt I did not have to push the Measurement button again.
OK, switch to manual light output settings on some(?) or all of the channels, and there is no longer a 2.5-second gap between preflash and "real" pulse. So the meter cannot be used. No way to get a reading without using the camera sensor, I guess.
Missing flash trigger on first shot... Clients/models get nervous when this happens and I don't like using anything that makes them worry. I don't remember these "wake-up-moments" from shoots a while back before upgrading the firmware. Maybe they happened. Missing frames doesn't square with everyone's eager praise foe 100% perfect Phottix Odins. I haven't heard this described by anybody.
I wrote Phottix some days ago and added to the thread on the Help interface. Nothing after a kind of boilerplate response to my first question: everything off, take out all batteries, replace, try again. Maybe helped but I was looking for 100% firing.
Your reply was helpful, thanks. I'm pretty experienced (had my TTL head screwed in wrong...) but wanted to dig in and really understand the system so everything you've been investigating has moved all of us further along. I see myself using the manual ratio control set for the most part. That way I lose the metering, though...Frustrating and bush compared to the way we took elaborate care to know exactly what light we had before we exposed film, especially view camera work. Even with Polaroids for testing...
BTW the ease of access to the HSS capabilities of the Phottix rig is truly neat.
Again, thanks for a detailed post to help out.