ISO changes between shot without any reason

[cem kadir pulan]

hi
i am working as a DIT in feature film.we notice that iso changes between 320 to 125 without any external movement.we shoot 320iso but last shot of the 1 card, there is 8 shots in card and following two cards shot on 125iso.the D.O.P and the director didnt notice the difference they said that the preview is normal both at the red monitor and directors monitor.

what could it be is someone see the same problem ?

thanx

 

[Bérenger Brillante]

Check the jog on the EVF. Often DP turn it on and change shutter, iso, and everything that is changeable here.

 

[Gunleik Groven]

They probably previewd RAW, and wouldn't notice.

If that's the case, the shots would look ok @ 320...