The SB-29s was the last of the old ring-style flash units for macro photography. It does not support DSLRs except in Manual flash mode.
- Guide Number (ISO 100 FX): 36 ft, 11m @ 20mm
- Weight: 14.5 ounces (410g)
- Power: 4 AA batteries
- Recycle Time (alkaline): 3 seconds
- Max Flash Duration: 1/1400
- Coverage: 20mm
- 35mm film TTL support: Yes
- D-TTL support: No
- i-TTL (CLS) support: No
- Auto Aperture: No
- Automatic Flash mode: No
- Manual Flash mode: Yes (3 levels)
- Head tilt: No
- Head rotate: No
- AF Assist: Yes
- High Speed Sync: No
- Repeating Flash: No
- Modeling Light: Yes
- PC Sync Socket: Yes
- LCD: No
- Foot style: Twist lock
- Flash Value lock: No
- Flash Color info: No
- Wireless: No
- Other: Macro flash, individual tube setting