If you can play the entire clips back in your camera, they are not lost. Well, as not long as there are no future accidents. Try the card reader approach discussed in the postings above H. Smith’s. You will need to pull the separate files over to your computer and use a movie editor to stitch them back into a being a single file. Oh yeah, make backups. p.s. Welcome to the forum.

I'll venture a guess here that the other flash units you tried have their own battery power. Fujifilm cameras compatible with the EF-X8 have an extra pin to supply power to the flash, as the EF-X8 does not carry its own power onboard. It sounds to me that something is wrong in the power supply circuit of either the body or the flash. If I remember correctly, EF-X8 compatible bodies have a pin to the top left of the hot shoe through which the body and flash communicate. I would also need to review the settings manual, because I don't know if it is possible through settings to de-energize that pin. Did B&H explore these avenues? I would be surprised if they didn't. I would expect that if anyone could run down the problem, it would be B&H. To summarize, my off-the-cuff guesses range from a dirty communication pin to a circuit failure to that pin, or a menu setting de-activating that pin. I will review my info and post an update if I find anything. For five years now, I use an EF-X8 for daytime close range TTL, but mainly as a commander to manage arrays of off-camera flash units, and so far the EF-X8 is 100% bulletproof.    

Hi, thanks for your comments/thoughts so far! I've done a couple more test shots this morning with the cameras sat on a table to keep them steady, in order to rule out motion blur. It doesn't seem to be anything to do with the exported files as both the RAW and Jpeg look the same - as does the preview on the camera's LCD. Fujifilm image: 

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

Nikon image:   

Olaf - thats a good point - the original image on Flickr appears to be the preview from a RAF file (13 MP jpeg/Normal quality) rather than an original full size jpeg in FINE quality - still shouldn't be as blurry as this example

That’s pretty small. Are you sure you’re using the best resolution settings?