Thank you all for your comments, Has been very rewarding to be able to shoot commercials on my Canon 650D-700D.
The combination of MLV RAW 12 bit and Nikkor AI lenses, shoot at 1736 x 976 resolution, processed in Davinci for color, Edited in Premiere
and at the end up-scaled 200% for 4k, using the UpRez plugin, gave very satisfactory results that has been appreciated by the customer.
Forgot to mention that the Mosaic VAF Filter is a must to avoid Aliasing and Moire. However if focal distance is not an issue Crop mode
Allows shooting without the mentioned filter with great resuls as is at the latest take.