You should be able to. The ultra wedge has two center baseplate holes, one above the other. The top one is for the 8" LX200R, I don't imagine it is too different to th LX90.
Quote:
The new Ultrawedge for the RCX400 (10"-14"), LX90 (10" & 12") & LX200 (7" - 14")
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All true, BUT, I've just mounted a 10" LX200R on an ultrawedge and meade have made a slight
change to the baseplate of the telescope, which hasn't been widely publicized. The base plate used to have the center bolt hole (large) and three holes (small) around the edges to mount to the wedge and hold it stable. Well it still has the same number and placement of holes except the "Top" hole is no longer a small bolt hole. They have made it the same size as the middle one. (Sorry for all the "small and "large" as I don't know the actual sizes).
This would no be a problem IF THEY HAD CHANGED THE TOP HOLE IN THE WEDGE TO TAKE THE SAME SIZE BOLT!!!!!! Yep that's right. You can't get the larger size bolt into the top slot of the wedge because the slot it too narrow!! BUT here is the kicker. They still send the wedge out with the three small bolts! Not two small ones for the sides and one large one for the top. As a consequence the scope will only be held on by the large center bolt and the two lower side ones. This hasn't seemed to make much of a difference yet, but it is annoying to say the least.
There...rant over