Wow DoP Sittipong Kongtong managed to test the Sigma 50-100 lens the on Blackmagic Mini 4.6K, RED Weapon 6K Dragon, RED Scarlet-W and RED 5K Dragon cameras. Here is the results albeit a very short video of the outcomes.
On January 30, 2017, I had tested a new Sigma 50-100 T 2.0 Cine. I had put it in 3 cameras; Blackmagic Ursa mini 4.6K shooting in Uncompress RAW, Red Weapon 6K Dragon in 3:1 RAW and Red Scarlet-W 5K Dragon in 5:1 RAW. I brought those RAW files into Resolve 12.5.4, then edited in Resolve and made no any color correction. Then exported directly from DaVinci timeline.
The Sigma 50-100 T 2.0 was set to shoot at T 2.0 for all 3 cameras. Even in wide open, the Sigma still look super sharp.
The first wide shot for every camera was 50mm T 2.0.
The close up was at 100mm T 2.0.
The original RAW from all 3 camera will be uploading soon.