X-T2 HD Video strange deformation

[Boris M]

Hi guys,

 

A few weeks ago I bought an X-T2, mainly for stills but as a video tool too. Yesterday evening I was making my first real video test shooting : my son presenting a magic trick.

Apart the poor choice of profile and the exposition aproximation (light was going down fast) a few of the clips shows some strange "flickering"  at the hedges of the picture  as you can see there, straight out from cam  :

 

The majority of other clips are looking normal, there were shot with the same settings, except for focal lenght  minor apperture or Iso changes. Settings were FHD 25 P, Velvia profile with -2 in hi, low lights and sharpness (trst purposes), iso 200 to 320, 1/50s, F5.6. Good Transcend 600x SDXC card (never showing problem with lumix gh3). The X-T2 was in boost mode. The only thing that I can think of if that the battery (original np126s) was running low at this moment. I changed it a few time after, but before the camera shuted down. My other track is the OIS I forgot to turn off, I know that it 's sometimes bad when on a tripod but that bad ?

I did not succed in reproducing the problem. Wich in a certain way is a bad thing as the reason is still unknown. For this shooting  its not a problem but it's not good for trust in gear you need to have for critical and pro aplications.

It look like if the lens correction was going on and off... Have you experienced something similar ? What do you think of it ? I'm new to Fuji and I already know the limitations of X-T2 as a video tool  but I'm not new to video and never seen something like that.
 

Thanks for your looks and thinks.

 

Boris