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In terms of ease of use, construction strength as well as EP quality, they were just as expected, for the price. Great for the moon and larger DSOs. This is a spare unit for me in my hometown where I don't really plan to do much astrophotography, if at all. So field rotation from an Alt-Az mount is not really an issue. I had the very similar SkyWatcher AZ3-GT mount before this which I sold to a friend. This Celestron model will be used with their Star Sense Auto-Alignment doodad, which will help in star alignment.
Verified purchase: Yes | Condition: New
The telescope is of good quality for the price. My two issues are the fact that the mirror and eyepieces were full of prints and finger oils (which can be very difficult to clean without scratching the optics) and the fact that the tripod was secured from movement with clear packing tape (which has been difficult to remove). Otherwise I am satisfied with the product.
Verified purchase: Yes | Condition: Pre-owned
The Celestron Nexstar SLT GOTO 90mm Maksutov-Cassegrain is mediocre in quality, just as good as any other GOTO. The casings, actual covers, are plastic and the legs are hollow. The battery case and compartment is cheap. "keep in mind, this a plastic telescope, more of a toy." I had to tighten screws all around the mount assembly before use. The actual 90mm Maksutov-Cassegrain is good though, it is sharper than a 127mm reflecting PowerSeeker. Reflectors look blurry and irregular, when compared to even this small 90mm MAK. The small 90mm has the least abberations out of any telescope type and the mirrors are perfectly aligned. The telescope's mount is top heavy and I only reccomend going up to a 127mm with it. The GOTO function is okay, just average, cheap. Overall, it is a toy telescope.
Verified purchase: Yes | Condition: New