Cinematographer
From a DoP's perspective, this element is essential for the visual design. It allows me to consistently implement the desired color mood and aesthetic image.
5/8" pin (Baby pin): standard 16mm mounting stud for lights and grip equipment that inserts into a Baby receiver.
Overview
The 5/8" Pin – commonly referred to in set jargon as Baby Pin, “Baby Spud," or “Baby Spigot" – is the standardized mounting pin (spigot) used to mechanically attach lights and grip accessories to stands, clamps, and arms. The pin is inserted into a matching receptacle, known as a Baby Receiver, and secured there with a locking screw.
The 5/8" Pin, along with the larger 1-1/8" Junior Pin, forms the backbone of mechanical interfaces on a film set. The standardization of these two sizes ensures that equipment from different manufacturers is compatible and that the lighting and grip departments can use the same hardware.
Technical Data
Dimensions:
- Pin Diameter: 5/8 inch = 15.875 mm (typically specified as "16 mm" in trade)
- Larger standard for comparison: Junior Pin 1-1/8 inch ≈ 28 mm
| Standard | Designation | Diameter |
|---|---|---|
| 5/8" | Baby Pin / Baby Spigot | ≈ 16 mm (15.875 mm) |
| 1-1/8" | Junior Pin | ≈ 28 mm |
Adapters, plates, and extensions with a Baby Pin typically feature the standard photographic threads 1/4"-20 and 3/8", used for mounting cameras, monitors, or accessories.
Use on Set
The Baby Pin is the interface for a wide range of equipment: small to medium lights, clamps (Convi/Cardellini type), grip heads, C-stand arms, monitor mounts, baby plates, and stand extensions. Equipment with a Baby Receiver is placed directly onto the pin; Baby-to-Junior adapters allow for switching between the two receiver sizes.
Due to its ubiquity, the 5/8" Pin is a fundamental component of any grip and lighting department and is found in countless variations – as a simple snap-in pin, double-headed, with a pipe clamp, or as part of an extension.
From the crafts
Perspectives
Producer
This professional solution increases production efficiency and reduces post-production requirements. It allows for flexible, quick adjustments during the shoot.
Gaffer
As a gaffer, this is an indispensable tool in my daily toolkit. It allows me professional light control and quick adjustments on set, which saves time and ensures quality.
More in the lexikon
Related terms
Test your knowledge
Quiz
1. Zu welchem Department gehört „5/8-Zoll-Zapfen"?
2. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?