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Phase One P20, P25, 4x5 Digital Back Long Sync Cable — main product image
Phase One

Phase One P20, P25, 4x5 Digital Back Long Sync Cable

Purpose-built long sync cable ensures reliable tethered shooting with Phase One P20, P25, and 4x5 digital backs.

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Overview

The Phase One Long Sync Cable is a specialized accessory designed to maintain reliable communication between a camera body and Phase One's P20, P25, or 4x5 digital backs. In medium format digital photography, precise synchronization between the shutter release and the digital back's capture timing is critical — any mismatch can result in partially captured frames or missed exposures entirely. This cable is engineered to meet Phase One's electrical and signaling specifications, ensuring that every trigger results in a properly timed capture.

The extended length of this cable makes it particularly useful in studio environments where the camera may be positioned at a distance from the workstation, or where cable routing around booms, stands, and other equipment demands extra reach. While it serves a narrow audience — specifically owners of the older P20, P25, and 4x5 Phase One digital backs — it is an essential piece of kit for those systems, where third-party alternatives may not guarantee the same level of reliable synchronization.

Specifications

Brand
Phase One
Cable Type
Long Sync Cable
Compatibility
Phase One P20, P25, and 4x5 Digital Backs

Pros & Cons

👍 Pros

  • Designed specifically for Phase One P20, P25, and 4x5 digital backs ensuring proper fit and signal
  • Extended length provides flexibility in studio and tethered shooting setups
  • Reliable synchronization prevents missed or improperly timed captures

👎 Cons

  • Compatible only with older P20, P25, and 4x5 digital backs — not usable with newer Phase One systems
  • Niche accessory with limited resale value outside the Phase One ecosystem
  • Exact cable length is not specified in the product listing

Frequently Asked Questions

It is designed specifically for the Phase One P20, P25, and 4x5 digital backs. It is not compatible with later Phase One IQ-series or other manufacturer digital backs.
The sync cable connects your camera's sync port to the digital back, ensuring the shutter release and digital capture are precisely synchronized so every exposure is properly captured.
This is the long version of the Phase One sync cable, providing extra reach for studio setups where the camera and tethered workstation are further apart or where cable routing requires additional length.
Phase One digital backs use specific connector types and signaling, so a generic sync cable may not provide reliable synchronization. This cable is engineered to match the electrical requirements of the P20, P25, and 4x5 backs.

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