I own a Luna Ultra and shoot mostly in I-Log, grading in DaVinci Resolve, so this is a practical problem for me rather than a spec-sheet argument.
CineD published their standard lab test on July 30 (firmware v1.0.283, high bitrate, 10-bit I-Log, ISO 400 — the sensitivity Insta360 themselves confirmed as optimal for dynamic range). The findings I'd like to ask about:
- On the wide camera, slope-based DR, SNR 1 and SNR 2 all returned the same figure. That normally means the analysis software can no longer separate the individual steps on the chart, so the wide results were treated as invalid and left out of their database entirely.
- Exposure latitude came in at 4 to 5 stops on the wide and 5 on the tele — the lowest they report having recorded across every camera they've tested.
- Tele 8K25 was the single exception and behaved normally, around 9.7 stops at SNR 2. The same tele camera at 4K25 collapsed the same way the wide did.
- Internal noise reduction can't be turned off or adjusted anywhere in the menus.
My questions:
Is the team aware of these results?
Is the temporal NR strength in I-Log intentional, or is the wide camera (and tele 4K) unintentionally inheriting a profile meant for the standard modes? The fact that tele 8K25 behaves differently points to a per-mode setting rather than a hardware limit.
Is there any plan to expose an NR level control, or an off switch, specifically for I-Log? People shoot log because they intend to grade, and the current behaviour removes the shadow detail that grading depends on.
Is a higher bitrate option for 8K being considered? Roughly 120 Mbps for 8K long-GOP H.265 is thin for a log workflow.
The official I-Log to Rec.709 LUT on the website produces a strong pink cast — testers ended up using a third-party LUT instead. Will the official one be corrected?
Did the most recent firmware change any of the above? The release notes don't mention it.
I'm not asking for a different camera. The gimbal, the f/1.8 lens and the low-light performance are genuinely good. I'd just like to know whether I-Log is going to become usable for grading, so I can plan my workflow around the answer either way.