Posts Made By: Jim Stiteler

I replaced an enhanced mirror with a new dielectric mirror bought from WO on-line about 5 months ago. Both were octagon shape. My dealings with WO have always been excellent and I'm sure they will get back to you. As long as the square one slides in OK, I would think it would be fine. Also, they have an excellent return policy whenever needed.

Excellent eyepiece. If you want to pay more, get the Ethos. FYI - Each 100° Series Nitrogen-Purged Waterproof eyepiece is internally sealed and purged with nitrogen to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximize the life of the internal coatings. I'll bet that if Tele Vue did this first, it would be a highly praised feature. Kudos to Explore Scientific for providing a viable alternative to the Ethos.

Sorry to be late responding to this thread. I've had the MTPro for over a year now and ended up selling my Sphinx SXW. (I prefer the alt-az viewing position.) I use the Vixen VMC260L and my total payload is 28lbs. I've found that balancing is the most critical component. I use the supplied 10 lb and another Celestron 11 lb counterweight. Balance must be done after the scope and counterweight are attached. The other night my goto's were putting my target in the center half of a 14mm ES100 eyepiece with a one-star alignment -- that's over 200x -- throughout the entire sky. Other times when my scope/tripod balance was slightly less than desireable, the target could be seen in my 20mm ES100 eyepiece. Tracking is excellent. I've never really had success with 2-star alignment. If ever the target is not in the eyepiece (most likely due to a less accurate balancing issue using a bubble level) I can just do a 1-star alignment somewhere in the region of the sky near the target.