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// Mobile Connectors

DSLR Remote Shutter (2.5mm TRS)

Many cameras (Canon, Nikon, Sony) use a 2.5mm or 3.5mm TRS connector for wired remote shutter control. Tip = autofocus trigger, Ring = shutter trigger, Sleeve = ground. Compatible with intervalometers and smartphone adapters.

// Specifications
Standard
Camera manufacturer proprietary
Connector
2.5mm TRS or 3.5mm TRS (varies)
Tip
Autofocus / half-press
Sleeve
Ground
Use Case
Remote shutter, intervalometer, time-lapse
Variants
Canon: 2.5mm, Nikon: 3.5mm, Sony: multi-terminal
// Pin Reference Table
Pin Name Function Type
T Tip Focus trigger (half-press shutter) I/O
R Ring Shutter release (full-press) I/O
S Sleeve Ground / common GND