When it applies
- P, S, A and M exposure modes are supported for these G/D CPU lenses.
- For camera-dial aperture control, use f4 > Aperture setting > Sub-command dial. Lock the AF 50mm f/1.8D ring at f/22; the four G lenses have no aperture ring.
- Matrix metering uses lens distance information. Metering-mode availability does not establish exposure accuracy.
- No minimum firmware version was specified by the cited compatibility evidence.
Where it stops
- Custom Setting f4 also offers Aperture ring control for ring-equipped lenses; that alternative is outside this rule’s camera-dial configuration.
- Autofocus, focus shift, image area and VR each require their separate evidence and settings. CPU compatibility does not establish every camera feature.
- No flash, burst-rate or video performance is certified by this rule.
Sources
- D850 — Compatible Lenses table — One-page PDF 6MB40211-01_P02-01; CPU type G/E/D, AF-S/AF-P row and notes 1, 7, 8. D850-specific AF, exposure and metering support. Family membership must be checked against the exact lens; converters excluded here. Read 2026-09-07.
- D850 — Exposure Mode — P/S/A/M descriptions; Lens Types; A and M sections. Camera aperture control with CPU lenses and minimum-aperture lock for aperture-ring lenses. No exposure-accuracy or video claim. Read 2026-09-07.
- D850 — f4: Customize Command Dials — Aperture setting. Aperture-ring control is an alternative setting for ring-equipped lenses; G/E remain controlled by command dial. The shared rule uses the Sub-command dial setting. Read 2026-09-07.
- D850 — Metering — Matrix, Spot and Highlight-weighted descriptions. G/E/D distance-aware matrix metering; spot centers on the active point except auto-area AF uses the center. Describes options, not metering accuracy. Read 2026-09-07.
- AF-S NIKKOR 50mm f/1.8G — product specifications — Full frame label; Key Features; Specifications. Exact AF-S G model, SWM, M/A and M modes, f/1.8–16 aperture range and full-frame format. Read 2026-09-07.
- AF-S NIKKOR 85mm f/1.8G — product specifications — Full frame label; Key Features; Specifications. Exact AF-S G model, SWM, M/A and M modes, f/1.8–16 aperture range and full-frame format. Read 2026-09-07.
- AF-S DX NIKKOR 35mm f/1.8G — product specifications — APS-C label; Key Features; Specifications. Exact DX AF-S G model, SWM, M/A and M modes, f/1.8–22 aperture range. Read 2026-09-07.
- AF Nikkor 50mm f/1.8D — Instruction Manual — PDF page 1, English: Minimum aperture lock and Specifications. Decisive D-type CPU identity and f/22 aperture-ring lock. The old manual alone is not D850 body evidence. Read 2026-09-07.
- AF-P DX NIKKOR 70–300mm f/4.5–6.3G ED VR — User’s Manual — PDF page 1, English 7MA0317C-02: introduction; Focus; Aperture; VR; Specifications. Exact G-type CPU/F-mount DX VR lens; electronic focus, aperture and VR controls. Older body exclusions are not used to decide D850 compatibility; its own manual supplies that. The 4-stop DX-body rating is not transferred to D850. Read 2026-09-07.
Pairs checked under this rule
Only these pairs were checked. The rule does not extend to other gear on its own.
- Nikon D850 + Nikon AF-S NIKKOR 50mm f/1.8G
- Nikon D850 + Nikon AF-S NIKKOR 85mm f/1.8G
- Nikon D850 + Nikon AF-S DX NIKKOR 35mm f/1.8G
- Nikon D850 + Nikon AF NIKKOR 50mm f/1.8D
- Nikon D850 + Nikon AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED VR
Researched from manufacturer documents by an AI agent and source-checked 2026-09-07. How the research works