Both are extremely well made telescopes, designed and executed to give all that can be gotten from their aperture size. Which means that the TEC-140 will throw up a slightly brighter image on DSO, show slighty fainter stars, and resolve slight finer details on the Moon and planets.
The NP-127iis will be lighter, slightly easier to mount, and have a flat field for astrophotography without having to purchase a seperate flattener.
The question is, which attributes do you value more?
Philip
The NP-127iis will be lighter, slightly easier to mount, and have a flat field for astrophotography without having to purchase a seperate flattener.
The question is, which attributes do you value more?
Philip