Bulb Mode and Mirror Lockup

Bulb Mode and Mirror Lockup

Bulb Mode

Timed bulb exposures controlled from the PC are available with cameras from the Canon EOS-1D Mark III onwards, including:

Canon EOS 40D, 50D, 60D, 70D, 77D, 80D, Canon EOS 6D Mark II, 6D, 7D, 7D Mark II, Canon EOS 800D/Rebel T7i, 760D/Rebel T6s, 750D/Rebel T6i, 700D/Rebel T5i, 650D/Rebel T4i, 600D/Rebel T3i, 550D/Rebel T2i, 500D/Rebel T1i, 450D/Rebel XSi, 100D/Rebel SL1, 200D/Rebel SL2, 2000D/Rebel T7, 4000D, 1300D/Rebel T6, 1200D/Rebel T5, 1100D/Rebel T3, 1000D/Rebel XS, Canon EOS 5DS R, 5DS, 5D Mark IV, 5D Mark III, 5D Mark II, Canon EOS-1D C, EOS-1D X Mark II, EOS-1D X, EOS-1D Mark III, EOS-1D Mark IV, and EOS-1Ds Mark III.

To take a bulb exposure:

1. Set the camera shutter speed to Bulb.
2. Either press the Release button to start the exposure and press it again to end it, or use the Time-lapse/bulb shooting… option from the Camera menu.

Note: It is not possible to use bulb mode with older cameras when triggering from the PC. This is a camera limitation. Pictures can still be taken in bulb mode by pressing the camera’s shutter release button directly.

Mirror Lockup

Mirror lockup can be used with all cameras that support it when the picture is triggered by pressing the camera’s shutter release or by using a remote release cable.

Some older cameras (e.g. Canon EOS 10D) can use mirror lockup while being triggered from the PC. With these cameras, the mirror flips up and the picture is taken after a 2-second delay.

For the Canon EOS 50D, Canon EOS 7D, Canon EOS 5D Mark II, and later models, pictures can be taken from the PC with mirror lockup enabled by pressing the shutter release button in the main window below the histogram display.