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Yes, use the EH-6 AC adapter to engage the mirror lockup feature in the set-up menu. It is grayed out until you plug in the AC as a protection factor. Remove the lens. Turn the camera on. Lock the mirror up. ONLY use air to blow off any dust. Do not touch the sensor. I use a Giotto Air Rocket with the lens opening facing the ground so the dust particles fall out. Turn the camera off and the mirror drops back down into place. I think I remembered everything. Your manual will have these instructions step-by-step. Hope this helps.