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| p.1 #4 · 5D MK II - How to use IR Remote & Mirror Lockup |
Unfortunately, camera manuals don't mention use of the RC-1 with bulb and mirror lockup (MLU). This omission has lead to confusion and misinformation about the RC-1 and these features. Take heart, the RC-1 is fully capable of controlling both bulb and MLU. For bulb exposures, fire the RC-1 once to open the shutter and again to close it.
For mirror lockup: set the MLU CF (CF3-1 on the 5D2), set either of the self-timer/remote modes (it works the same on immediate release and 2-second delay with the RC-1) and fire the RC-1 set to 2 second delay. The mirror immediately swings up and the exposure is made 2 seconds later. MLU is not available on all models ( I seem to recall some Rebel lacking it). I remember some early film EOS lacking MLU in CF but it engaged as default when you used the 2-second delay with the RC-1. Wish the 5D2 worked the same way...