We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Sigma CR-21 wired cable release with button and connector

SIGMA

SIGMA CR-21 Cable Release for SD14 SD15 SD1 Merrill

SKU CH-RAXZ-06Q99

A wired cable release for Sigma SD14, SD15 and SD1 Merrill cameras that reduces camera shake during mirror-up or super-telephoto shooting

  • FeaturesThe CR-21 Cable Release is an alternative to the RS-31 Remot
  • Reduces camera shake for sharper images with wired remote control
  • Wired connection eliminates wireless interference for reliable triggering
  • Compatible with SD14, SD15 and SD1 Merrill camera bodies
  • Enables mirror-up function use without introducing vibration
  • Alternative to RS-31 remote with direct cable operation

Wired Cable Release for SD14 SD15 SD1 Merrill

The SIGMA CR-21 is a wired remote switch that plugs directly into compatible Sigma cameras. It gives photographers a physical shutter button away from the body to prevent vibration during exposure. The accessory is aimed at owners of the SD14, SD15 and SD1 Merrill models who want a simple tethered trigger.

Alternative to RS-31 Remote Controller

This release replaces the RS-31 wireless remote with a corded design that needs no batteries or pairing. The jump is worth it when you prefer a permanent wired link over radio reliability or when the original remote is unavailable. It removes the risk of signal drop-out during long sessions.

Simple Plug-In Installation

Connection is made by inserting the cable into the camera’s remote socket; no tools or configuration are required. The most common issue is a loose fit if the port is worn, which can cause intermittent triggering. Keeping the connector seated and the cable routed without tension avoids missed shots.

Highlights

  • Reduces camera shake for sharper images with wired remote control
  • Wired connection eliminates wireless interference for reliable triggering
  • Compatible with SD14, SD15 and SD1 Merrill camera bodies
  • Enables mirror-up function use without introducing vibration
  • Alternative to RS-31 remote with direct cable operation

Specifications

BrandSIGMA
ModelCR-21
FeaturesThe CR-21 Cable Release is an alternative to the RS-31 Remote Controller offering a wired connection to the camera

Questions about this item

Which Sigma cameras does the CR-21 cable release connect to?

The CR-21 is compatible with Sigma SD14, SD15 and SD1 Merrill digital cameras via their wired remote port.

How do you attach the CR-21 to the camera and what step is often missed?

Plug the cable into the camera's remote socket, then press the release button halfway to lock focus before pressing fully for the exposure.

What part of the CR-21 is most likely to need replacement after extended use?

The coiled cable and its connector endure repeated flexing, so the cable assembly is the component most likely to wear out over time.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.