>>4196515A Magic Lantern build that makes it easier/more reliable to film 2.5k and 2.8k RAW at various aspect ratios on the cameras supported by ML. So you can take an old EOS M, for example, and actually turn it into a usable cinema camera by today's standards. The resolution is just enough to hold up against 4k (especially after you crop away some of that 4k for different aspect ratios), and the RAW format makes it very flexible in post.