o-turtle 2 rc issues on GH5

[TimC]

Has anyone had any luck with a o-turtle on a Panasonic camera? It looks fine, the camera detects the trigger when it is on, but it doesn't recognize it as a trigger that does TTL.

 

It also never fires the flash.

 

Edited Sunday at 12:23 AM by TimC

[Chris Ross]

From that screen it looks flash exposure compensation is enabled (not greyed out) which kind of implies that TTL is there.  Have you tested to see if it fires a pre flash?  If you set it to second curtain sync and the camera on manual with something like a 1 sec exposure,  the pre-flash would fire when the shutter opens and the main flash would fire just before second curtain starts to close enabling you see both pre and main flash.

[TimC]

Normally I’m using the FL70 mini flash and that puts up TTL/manual as an option (and fires fine). I can’t see if second curtain sync does anything. 

[Chris Ross]

2 hours ago, TimC said:

Normally I’m using the FL70 mini flash and that puts up TTL/manual as an option (and fires fine). I can’t see if second curtain sync does anything. 

Second curtain sync is only to check if it is firing a pre and main flash.  The pre flash fires at the start of the exposure and the main flash at the end in second curtain and if the exposure is long enough you can see two distinct flashes.    If you can see two flashes that is a start.  If it's only a single flash then TTL is probably not working.

 

If you see two flashes connect up your strobe through a fibre optic cable and try taking a shot of an object with the flash very close, then again about a metre away, you should be able to tell if the flash for the more distant exposure is more powerful.  You could also do this taking a test shot at f2.8 or similar and a second shot at f16.  Then check if it gets the exposure right.

 

What you see in the menu may vary depending on how the flash is emulated in your trigger it has to pretend to be a compatible flash to get the camera to fire the flash properly, hence the suggestion to test if it is pre flashing and then if the system can vary flash power.

[TimC]

I mean't that I can see if the second curtain change makes sense, and it is a good suggestion for testing. In any case, Balazs is going to get back to me.

[Chris Ross]

6 hours ago, TimC said:

I mean't that I can see if the second curtain change makes sense, and it is a good suggestion for testing. In any case, Balazs is going to get back to me.

Yes I think best to talk to Balazs, he should be able to tell you how the system is supposed to behave.  If you follow what I laid out above it will tell you the system is doing if you want to pursue it.  Let us know what the end result is please.

[TimC]

Still preliminary but it looks like the turtle is not fitting perfectly into the Panasonic hot shoe.  Updates as they happen. 

Edited Monday at 03:26 AM by TimC

[TimC]

ok, this might be a bit of user error on my side. The GH5 has some contacts on the edges of the shoe which make a really tight fit. It looks like some extra force is needed to seat the trigger properly and then I can see the Manual/TTL settings. I'll do some tests with my Inons to see how they fair.

[TURTLE-Balage]

Hello,,

Unfortunately, I didn't realize that the GH5/GH6 had already been tested, so I was able to rent one and conducted the tests myself. It works perfectly in normal optical TTL mode.

Unfortunately, the WL mode has not been tested yet, and the PANASONIC (RC) mode does not run.

There are many active projects right now, so I haven't had much time to deal with this, but I will dedicate some time to it soon. I will share the results either on the website's blog or on Facebook and Instagram.
Have a nice evening.. 🙂