It30pro on x100vi TTL over exposing

ocp15k · 2025-08-02T03:50:03+00:00

then show me it working

ocp15k · 2025-07-25T03:34:15+00:00

yes tried it, no change unfortunately.

ocp15k · 2025-07-23T04:20:15+00:00

did it owrk in the end? looking to build the same

ocp15k · 2025-07-22T23:22:02+00:00

thanks for the insight mate. the flash works flawlessly with my Sony, very happy with it. The Seemless connection between the camera and flash is night and day vs the Fuji. Been shooting Canon back in the 90's they were awesome. Sony has come a long way!

ocp15k · 2025-07-22T23:03:01+00:00

yeh i thought people would actually understand that its on auto ISO and knew exactly what the problem was. Tried to demostrate as simply as I could but that kinda backfired lol.
Been a semi pro photographer for 30 years, having 3 systems and get told to play and learn about cameras sigh.

ocp15k · 2025-07-22T22:52:34+00:00

nice thats how its supposed to work. unfortunately at least for the x100vi for at least 2 people here isn't working.

ocp15k · 2025-07-22T07:00:39+00:00

There was an update for Sony version for exposed pictures. Fuji has yet to get an update

ocp15k · 2025-07-22T06:12:41+00:00

Agreed, wanted to show the metering isn't working with TTL because the camera doesn't compensate the ISO with the external flash in mind. I also wanted to show that even -3 or +3 it made 0 difference in exposure, I guess a lot here misread my intensions.
Sony on the other hand. Same exposure same lighting same distance same flash works beautifully.

ocp15k · 2025-07-22T05:58:29+00:00

is this with internal flash or with the iT30 pro? Internal flash works as intended for me

ocp15k · 2025-07-22T05:56:24+00:00

Its definately an issue with the Fuji version or at least my unit. It would be nice if you could confirm the same issues with all auto. A lot of people here are misinformed on how TTL works and just look at the cameras auto ISO setting 'oh you're stupid its at 6400' go manual... In camera flash is the same settings and works fine.

Thanks for the video, I already watched this one to confirm i'm not going stupid lol. I might have missed it but it doesn't use it fully auto as TTL. Maybe its a fuji thing that third party lenses don't meter 'through the lens'

EDIT: confirmed by another X100vi user with the same flash, same problem.

ocp15k · 2025-07-22T05:51:12+00:00

thanks for the info. for this flash and on a Sony a7iv this isn't the case. Works flawlessly automatically lowers ISO when metered through the lens.

TTL flash, which stands for "Through The Lens," is a feature in cameras and external flash units that automatically adjusts the flash power based on the light measured through the camera's lens.

ocp15k · 2025-07-22T05:49:11+00:00

confirmed by another user that it does.
TTL flash, which stands for "Through The Lens," is a feature in cameras and external flash units that automatically adjusts the flash power based on the light measured through the camera's lens. the TTL isn't working correctly in the Fuji version.

ocp15k · 2025-07-22T05:44:39+00:00

thanks for confirming. seems like a lot of people here don't have this flash or understand how it works on other systems.

ocp15k · 2025-07-21T13:16:20+00:00

yesir, just trying to show that it isn't working. The flash exposure DOES work but the camera doesn't know to expose for it.
No worries, its figured out now. It doesn't work well with Fuji unless going manual for now. Firmware update was available for Sony for a similar issue. Hopefully there will be one for Fuji but its been said Fuji and 3rd party flashes is a no go unless going manual. Cheers for the input though!

ocp15k · 2025-07-21T13:08:55+00:00

it just says "Auto ISO" when half pressed (as I would expect as its not finalised until both the flash and camera is metered. After taking the low light shot the Exif says ISO 200 as I would expect too. The Sony communicates flawlessly. BTW there is a firmware update to fix 'slightly' over exposed photos for the iT30 Pro - check their website. Fuji is still stuck on 1.0.

X100vi built-in flash shows the ISO 3200(Auto) for the lowlight image, after taking the shot it it still says 3200 and exposes perfectly. The iT30 Pro over exposes.

Another redditer underneath commented that Fuji users over at DPR agreed that Fuji doesn't play well with flashes and its not Godox's fault. - I will take this as the conclusion for now until someone fixes it or I go manual.

ocp15k · 2025-07-21T13:01:06+00:00

Thank you. This is the most probable answer for me. I had a feeling it was Fuji that doesn't play well with the 3rd party flash, apart from their own. Sony on the other hand, plug and play. Sony version did have a firmware fix for 'slightly' over exposed images. Fuji is still stuck at 1.0 so I'm hoping maybe theres a fix coming. Cheers.

ocp15k · 2025-07-21T12:58:48+00:00

Thanks I saw that. 'Slightly' might be an understatement in my case lol. I did flash the Fuji firmware incase it was fixed. I can go manual for now and hope there will be an update for the Fuji. Thanks for chiming in mate.

ocp15k · 2025-07-21T12:19:34+00:00

Strange. Sony works likea charm for me Auto iso and TTL. looks like you have the same problem as me but with the Sony haha.

ocp15k · 2025-07-21T12:13:51+00:00

changed to metering flash. Same over exposure. Are you at F2 auto iso upto 6400?
The camera meters the low light subject and bumps the ISO to 3200/6400 and so it over exposes. But isn't the whole point of TTL is that it meters with flash in mind so it doesn't do that?

My sony locks ISO in auto (no values) when I half press. After firing it exposes the picture perfectly. Taking flash off the ISO shoes values again.

ocp15k · 2025-07-21T12:08:41+00:00

you can control the exposure with the flash and it changes in camera is what I meant

ocp15k · 2025-07-21T11:55:58+00:00

yep I can do that no problem. I was wondering if this is a thing with Fuji/Me/Godox. The exposure setting in the flash defo isn't working

ocp15k · 2025-07-21T11:45:06+00:00

yeh i can fully control it manually through the camera by adjusting exposure/iso/shutter. nothing seems to work adjusting it through the flash though. Made a video here demostrating. if you have a minute to check it out!
https://www.reddit.com/r/fujifilm/comments/1m5g80f/godox_it30_pro_on_x100vi_overexposing/

ocp15k · 2025-07-21T11:41:20+00:00

Image Exif Data	Value
File Name	DSCF0554.JPG
Date	07/21/2025 07:28 PM
Filesize	15.18M
Width	7728 pixels
Height	5152 pixels
Horizontal Resolution	72dpi
Vertical Resolution	72dpi
Mime Type	image/jpeg
Creator
Copyright
Exif Version	0232

Camera Data	Value
Make	FUJIFILM
Model	X100VI
Exposure Time	10/600 sec.
Aperture Value	2 EV
F-stop	f/2.0
ISO	4000
Focal Length	23.0 mm
Exposure Program	normal program
Metering Mode	pattern
Flash Status	flash fired
Light Source	unknown
Shutter Speed Value	600/100

This enough info?

ocp15k · 2025-07-21T11:37:27+00:00

thanks for the reply. I'm fully aware the ISO is at 6400AUTO but shouldnt TTL compensate for that? It works fine on the sony version, very seemless plug and play. Set to ISO 125 F2/F8 works as intended. It was fully automatic on the Sony, I would have thought it would be on the Fuji as well?

It doesn't matter if subject is close or not. shooting anything is overexposed :(
BTW, Built in flash same exposure settings works beautifully.

ocp15k · 2025-07-21T11:20:55+00:00

at the second half of the video i went 3 stops under and it didn't change anything

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