Hi everyone!
After using a Celestron PowerSeeker 127EQ, I'm considering upgrading to a Celestron NexStar 127SLT. Before buying it, I'd really like to hear from people who have actually used the 127SLT.
My main interests are planetary imaging and deep-sky imaging using a phone or a small astro camera.
With my 127EQ, I've managed to capture some DSOs such as M57 and M22. However, manual tracking is a major limitation, especially when trying longer exposures. I'm wondering how much of a practical difference the 127SLT's GoTo and motorized tracking would make.
I'd especially like to know:
• What are the biggest advantages of the 127SLT compared with the 127EQ? • What are its biggest disadvantages? • How good is the 127SLT for planetary imaging? • Is short-exposure deep-sky imaging realistic with it? • How much does field rotation affect imaging because of the alt-az mount? • What exposure times are realistically possible? • How much easier is it to find and keep DSO targets centered compared with the 127EQ? • Is the SLT mount stable enough for planetary imaging? • How portable and compact is it compared with the 127EQ? • Are there any important limitations I should know about before buying one?
I know the 127SLT also has a 127 mm aperture, so I'm not expecting a huge increase in light-gathering power. I'm mainly interested in the real-world differences provided by the GoTo, motorized tracking, and Maksutov-Cassegrain design.
I'd especially appreciate experiences from people who have used the 127SLT for both visual observing and astrophotography.
Thanks!