This is a brief review of the Pixel TF-334 Hot shoe Adapter for Converting Sony DSLR Cameras MI to Canon Nikon Hotshoe with 3.5mm PC Port
. The TLDR is that it does not support TTL, and so is pretty pointless. But read on if you want to see the test results.
Wireless TTL test
To test it, I started off testing my Godox system wireless flash triggers, triggering an AD200 flash. Just taking photos of a blank wall. Camera was the Sony A7IV. The triggers were set to fire the flash in TTL mode. To begin with, I tested the Sony foot trigger (Godox X2TS) directly in the camera hotshoe, this gives a reference image that we can compare against:
Now if we use the TF-334 Hot shoe converter with a Canon foot Godox transmitter (Godox X2TC), we can see the image is very underexposed. The TTL is not working and the flash is just firing at minimum power:
And if we try the TF-334 with a Nikon foot Godox transmitter (Pixapro ST-III TTL-T N) in TTL mode, we see the same thing:
Wireless Manual power test
Now let's look at wireless flash with manual power. We set the power to 1/128 on the transmitters, and again start with the Sony foot transmitter straight in the camera hotshoe for a reference image of how it should work:
Now with the Pixel TF-334 and the Canon foot transmitter we get the same result as we did with the Sony transmitter:
And with the Nikon transmitter in manual mode we also get the same result:
So we can see that TTL does not work with the TF-334 and wireless flash, but manual mode does. However, manual mode also works fine with the Canon and Nikon foot transmitters directly in the camera hotshoe. So the TF-334 is not doing anything useful.
Canon foot transmitter in manual mode at 1/128 power directly in the camera hotshoe:
Nikon foot transmitter in manual mode at 1/128 power directly in the camera hotshoe:
On-camera TTL test
Next, testing with on-camera flash. Again, we'll start with a reference image using a flash with a Sony foot - the Pixapro Li-ion 580IIS:
With the TF-334 and a Canon foot flash (Pixapro GIO1, same as the Godox V1) in TTL mode, we see the same thing we saw in the wireless tests - the flash just fires at minimum power:
Using a Nikon SB-800 flash on the TF-334 in TTL mode we see something different - the flash fires at full power:
On-camera Manual test
If we put the Pixapro GIO1 Canon flash (mounted via the TF-334) in manual mode at 1/128 power, this works okay:
And if we put the Nikon SB-800 (mounted via the TF-334) in manual mode at 1/128 power, this works fine as well. (Note the exposure is much darker just because the SB-800 is much less powerful than the Godox / Pixapro flashes).
The same as we saw in the wireless tests then really. TTL does not work, but manual does. And if using manual mode we can just mount the flash straight in the camera hotshoe, no need for the TF-334. For, example, here's the Pixapro GIO1 Canon flash in manual mode straight into the camera hotshoe. You can see the exposure is the same as the previous image with this flash where the TF-334 was used.
And here's the Nikon SB-800 in manual mode and mounted directly in the camera hotshoe:
PC-Sync test
So the only useful thing the Pixel TF-334 adapter does is to provide a PC-Sync port. I checked this works with the Nikon SB-800 (in manual mode) mounted off camera, and as you can see, it works fine:
The product information for the TF-334 does not explicitly say that it supports TTL. But why would it have the pins for a Sony Multi Interface Shoe on the foot?
And why does it have the contact pads for the TTL pins of Nikon and Canon flashes in the shoe?
I have not broken the TF-334 open to see what is inside, but I suspect that the extra connections are just for show and it is only the actual central trigger pin / pad that is connected.
In conclusion, don't waste your money on this adapter. If you need a PC sync port there are cheaper alternatives avaiable. If you are happy using your flash in manual mode, just use it straight in the camera hotshoe, no need for an adapter.
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