Lens Compatibility
- The FG requires Automatic Indexing (AI) Nikkor lenses for P and A modes to function. Lenses with AI capability include AI and AI-s type Nikkor lenses and Nikon Series E Lenses.
- The following Non-AI and AI-converted lenses are not usable with the Nikon FG:
| Non-AI (Requires AI modification) | AI-converted 55mm/1.2 Ser.# 184711-400000 | AI-converted 28mm/3.5 Ser.# 625611-999999 |
| AI-converted 35mm/1.4 Ser.# 385001-400000 | Fisheye 6mm/5.6 (Requires MLU) | Fisheye 10mm/5.6 OP (Requires MLU) |
| PC-Nikkor 28/4 below ser.# 180901 | PC-Nikkor 35/2.8 ser. # between 851000-906201 | Reflex Nikkor 1000mm/11 ser. # below 1430000 |
| Reflex Nikkor 2000mm/11 ser. # below 200311 | PC Nikkor 28mm/4 below ser# 180900 | PC Nikkor 35mm/2.8 Ser.# 851001-906200 |
| Zoom Nikkor 200-600mm/9.5 ser. # below 301922 | Zoom Nikkor ED 180-600mm/8 ser. # below 174180 | Zoom Nikkor ED 360-1200mm/11 ser. # below 17412 |
| Focusing unit AU-1. |
- Autofocus Nikkor lenses (except G-type) will mount correctly but autofocus does not function. Vibration reduction (if fitted) does not function. G-type autofocus lenses lack an aperture ring and do not couple with the indexing ring on the FG.The P mode does not function. The A mode will suggest a shutter speed for the available light. The aperture can be stopped down by slightly unscrewing the lens.
- DX Nikkor lenses will mount correctly, but the reduced image circle does not cover the full 35mm film frame. P and A modes are not available with G-type DX Nikkors.
- IX (APS format) lenses extend too far into the camera and may cause damage. The reduced image circle does not cover the full 35mm film frame.
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