Revealing the unseen - Focus the oculory - Why can't I focus the focus crystal?

Solution 1:

Found a workaround (Credit to Sebastian at TheGamerAccess.com): Open the console (Press ~ or some other button like § or ½ depending on your keyboard layout), and type player.SetStage MG06 55. That should take you to the next part of the event.

Solution 2:

You actually don't blast the lenses, you have to hit the focus crystal. Try hitting that with fire and ice to adjust, until the beams of light line up better with the rings on the roof. You then have to use the buttons on the platform above the device to move the rings so that the mirrors are in place.

Solution 3:

I just finished this quest, and it wouldn't let me focus the crystal by hitting the upper part. I actually shot the floor, there are a few of the blue orb things that when hit with frost/fire would focus the beam. I'm not sure if that's the intended way to get it to focus, but it worked for me. Try shooting the floor if the actual crystal doesn't work for you.