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Panasonic GH5 with Godox tt350o flash

Started Oct 12, 2017 | Questions thread
Jacques Cornell
Jacques Cornell Forum Pro • Posts: 16,259
TT350, V860II, X1 & GX7 plus RF interference

kli wrote:

cogwheel wrote:

Does anyone know if the GH5 is fully compatible with the Godox tt350o .

I don't, but I use one on a GX7, which also isn't on the compatibility list. In some ways it works terrific. In others... um... well...

Have looked at the Godox web site and it does not list the GH5 although they do list the

G85/G80 and the GH4 as compatible .

The list is basically the gear they had in-house to test with, not necessarily a complete compatibility list.

I don't want to invest in two flash guns and a trigger if they don't work out out the box so to speak .

It kind of depends on your definition of works. Panasonic users seem to be having a slightly harder time, particularly with HSS function, than Olympus users with the Godox -O gear. It's the perfect size/weight for my GX7.

My TT350-O works perfectly on-camera with my GX7. TTL, HSS, 2nd curtain, S1/S2, etc. all work as expected. My only big complaint is that it only swivels 270º.

As an on-camera transmitter with TT600 units as slaves, everything works perfectly. Remote power control and HSS are flawless. However, as a YN-622 user, I note that there's no remote zoom control, and no setting groups into MULTI mode remotely.

As an on-camera transmitter with a TT685C (I also shoot Canon) with upgraded firmware and in OLPS (Olympus) slave mode, however, the picture is muddier. If I use the combination indoors or in low light outdoors, everything works. If I then move this working combination to bright light (near a window, outside in sunny-16), everything goes to hell in a handbasket. TTL fires out of sync, and HSS refuses to fire at all. In M and out of HSS, remote power control and firing work fine. [facepalm]. Same behavior with my G3.

As a slave unit, it cannot do cross-brand TTL. So, using my TT685C as master on a 5DMkII and the TT350-O as slave meant that if I set TTL, it would only fire at full power. M mode power control and HSS worked fine. My iPhone+A1 can also control its power remotely, but obviously, without HSS or TTL function.

My recommendation is if you want it as an on-camera flash, don't hesitate. If you want it as an on-camera transmitter, consider getting an X1T-O or wait for the XPro-O. If you want it only as an off-camera slave, I'd recommend a TT600 instead, because it's cheaper and has more power and because Idon't have HSS issues with it. But. YMMV.

I bookmarked this post and found it helpful as I was considering TT350 and V860II for my GX7. So now I'll add an odd finding for discussion and consideration. First, working in a large urban hotel, I've found radio interference from nearby wifi, wireless mics, and God knows what else to seriously decrease the range and also make triggering very unreliable - like, only 20% success in a medium conference room. This is with Adorama's Zoom Mini (TT350) on-camera and a pair of Zoom Li-on R2s (V860II) on stands. On the theory that it would have greater radio power than the Zoom Mini, I got an R2 (X1). That had no problem triggering a pair of Zoom Li-ons 100' away in a large ballroom.

However, testing at home shows that a shutter press on my GX7 with R2 mounted will trigger the Zoom Li-Ions only if the camera is in AFF or AFC mode, not in AFS. Weird. All firmware is up-to-date. One Zoom Li-on can trigger the other in any AF mode, so this odd behavior is unique to the R2.

FWIW, at home, the Zoom Mini reliably triggers the Zoom Li-ons in any AF mode.

My old 433MHz R1 triggers always worked perfectly - though they don't support TTL - so these will be my Plan B for high-interference situations until the R2 can be made to work properly and reliably with all my GX7's AF modes.

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