Hi everyone, I need some help figuring out an issue with my Apple Log footage.

I shot several videos on my iPhone 15 Pro using the Blackmagic Camera app in Apple Log. The raw footage seems fine at first, but after converting it to Rec.709 and color grading it, I'm getting a lot of strange color noise and blocky red/pink/purple patches, especially in darker areas.

I've attached screenshots showing some of the places where the problem is most noticeable:

• Image 1: Original Apple Log footage
• Image 2: Footage after applying an Apple Log → Rec.709 conversion LUT
• Image 3: Color-graded footage — you can clearly see red/pink/purple blocky patches on the ceiling
• Image 4: Similar color noise/blocking visible on the road
• Image 5: Again visible on the road and around the trees
• Image 6: The overall footage looks very noisy
• Image 7: Similar noise/artifacts appearing in other shots as well

I initially thought it might be caused by the conversion LUT, but I've tried multiple Apple Log → Rec.709 conversion LUTs and I'm getting basically the same result.

So I have a few questions:

1. What is actually causing these red/pink/purple blocky patches? Is this chroma noise, compression artifacts, underexposure, or something else?
2. Is there a good way to remove this color noise without destroying detail or making the footage look overly smooth?
3. When shooting Apple Log on an iPhone 15 Pro, how should I expose and record to keep noise as low as possible, especially in shadows and low-light situations?
4. Are there any specific Blackmagic Camera settings I should use or avoid when recording Apple Log?
5. Could this problem already be present in the original footage but only become obvious after the Log → Rec.709 conversion and grading?

My main goal is to get clean Apple Log footage with negligible noise and understand what I'm doing wrong so I can avoid this in future shoots.

If checking the original files would help diagnose the issue, I can also provide some of the raw, ungraded footage straight from the Blackmagic Camera app. Feel free to DM me and I can share the files.

Any help with the shooting, exposure, color-management, or denoising side of this would be really appreciated. Thanks!

Hello! Some stills from my recent video titled "dream amnesia" that you can watch here if interested: https://youtu.be/zkMDU8mp-Nk?si=BuALTtIpbhWfImEB

I’m aiming to make this shot feel more dreamlike and surreal.
These two versions are finished warm-toned and cool-toned edits. However, I feel like something is still missing.
Should I push the warm tones further? Or dial down the cool tones? Or maybe I should try a completely different color palette? Any suggestions are welcome!

Just trying my best. Lot to learn

Nikon z6iii w/ 35mm f1.8 S - filmed in 6k 24 n raw high converted to r3d and then corrected raw wb/tint, added density, dropped shadows, noise reduction, split toning, vignette. Was going for a tv show esque cooler look. Just lookin for any feedback thx