The NiSi Shutter Release Cable CF1 for NiSi Bluetooth Shutter Release allows selected cameras to connect to the NiSi Bluetooth Wireless Remote Shutter Control. When combined with our app, the app calculates the correct long exposure time once the base exposure is set, then allows the triggering of the camera to start and stop the exposure at the calculated time using bulb mode.Supported Camera Models with the CF1 cable:Canon: R6, R, RP, M6, M5, 90D, 80D, 70D, 60D, 77D (9000D), T8i (850D), T7i (800D), T7 (2000D), T6s (760D), T6i (750D), T6 (1300D), T5i (700D), T5 (1200D), T4i (650D), T3i (600D), T3 (1100D), T2i (550D), T1i (500D), XSi (450D), XTi (400D), XT (350D), XS (1000D), Digital Rebel (300D), SL2 (200D), SL1 (100D), G1 X Mark III, G1 X Mark II, G1 X, G16, G15, G12, G11, G10, G3 X, G5 X, SX70 HS, SX60 HS, SX50 HSFujifilm: GFX100, GFX100s, GFX 50S, GFX 50R, X-H1, X-Pro3, X-Pro2, X-T4, X-T3, X-T2, X-T1, X-T30, X-T20, X-T10, X-T100, X-E3, X-E2S, X-E2, X-E1, X-A7, X-A5, X-A10, X100V, X100F, X100T, X70, X30, and XF10Olympus: OM-D E-M1X, OM-D E-M1 Mark III, OM-D E-M1 Mark II, E-M5 III, E-M5 IIPlease note this is the cable only and requires the NiSi Bluetooth Wireless Remote Shutter Control (Sold Separately).