Sony ECM-B1M is a camera microphone with eight capsules and digital directional processing, offering supercardioid, cardioid and omnidirectional patterns. Frequency range 40 Hz – 20 kHz, weight 79 g.
The microphone slots into the Multi Interface Shoe and transmits audio digitally directly to the camera, with no cables or batteries. Before renting, verify that your Sony body supports digital audio via the MI Shoe. Auto level and low-cut filter are available.
Ideal for
Why Sony ECM-B1M
- Digital transmission – Audio goes to the camera digitally via the shoe, without a cable and without conversion noise.
- Three characteristics – Switches between supercardioid, cardioid and omnidirectional pickup patterns.
- No batteries – Powered from the camera’s hot shoe.
- Low weight – 79 g, no load on gimbal or small body.
Key specs
| Type | Shotgun microphone |
|---|---|
| Characteristics | supercardioid, cardioid, ball |
| Frequency range | 40 Hz – 20 kHz |
| Connector | Sony Multi Interface Shoe |
| Power | from camera rails (MI Shoe) |
| Weight | 79 g |
Other parameters
| Capsules | 8 electret condenser |
|---|---|
| Sensitivity | -20 dBFS (1 kHz) |
| Output | digital / analogue (switchable) |
| Dimensions | 81.8 × 27.4 × 99.3 mm |
| Functions | auto level, low-cut filter |
| Accessories | furry windshield, case |








