Could be the grade, but the whole image has a color wash. Arri is better at color separation, saturated and neutrals dont really get muddied together. Head shots are super shallow, my assumption is a FF prime lens wide open. Could also be something that was done in post, but sharpness is wayyy too high for what im used to on the Alexa. Eye is also tack sharp even with a camera move. Shot is in slow motion (im assuming 60fps) if it is indeed 60fps and shot in 4k then you are limited to prores 4444 (yes, still good but def not arri raw)
For me, clearly this was shot with the Sony FX3. Alexa Mini doesn't have that cheap infamous artifacts on the background that you can see starting at 0:11 (on the left, you can see the weird movements of the lake horizon line). This is probably introduced by IBIS (even if you turn it off on the FX3 it still produces artifacts). The $25K Burano, which also has IBIS, also presents this problem but differently than FX3, it has a better mechanism to turn the IBIS completely off so the camera behaves as it is a non IBIS camera. Another cue that this is probably a Sony FX3 is that the Alexa Mini has richer colors, more tonalities in colors, and more micro contrast which gives the appearance of having more sharpness and a more 3D-pop effect on the image. MHO
@@CINENIMUS I did not mean to hurt you. you did a good job. I just wonder why there is this artefact from 0:13 to 0:17. My best guess is the lense. Cheers