The MiNT self(ie) timer fits perfectly on any SX-70 camera including Sonar, SLR680 and SLR670 series. You can choose between 10, 5 or 3 seconds. And it’s got an LED to tell you when the time is up. Best used for self-portraits or group shots, simply plug it into your SX-70 and press the button. This will help reduce camera-shake caused by pressing the shutter button.