I have a CGEM mount and I need to use it at latitudes below 15 degrees o...

The mount does have latitude limits.However, at your own risk, you can use the tripod to extend the range. For lower or higher latitudes, the tripod legs would have to...

I have a CGEM mount and I need to use it at latitudes below 15 degrees o...

The mount does have latitude limits.However, at your own risk, you can use the tripod to extend the range. For lower or higher latitudes, the tripod legs would have to...

How do I quickly start my Celestron telescope? Can I use previous alignm...

If you want a fast start for your scope to track without bothering to go through the entire alignment routine, there are a number of functions available. It depends on...

How do I quickly start my Celestron telescope? Can I use previous alignm...

If you want a fast start for your scope to track without bothering to go through the entire alignment routine, there are a number of functions available. It depends on...

What does the hand control message No response 16 (and/or No response 17...

"No response" means that the hand control has lost communication with the electronics board within the base of the telescope. The number following this message will indicate the address o...

What does the hand control message No response 16 (and/or No response 17...

"No response" means that the hand control has lost communication with the electronics board within the base of the telescope. The number following this message will indicate the address of...

I want to use 2 in eyepieces with my SCT and/or Mak. Will there be vigne...

Vignetting is normal in any real optical system. Some light must be blocked because of off-axis distortions or aberrations from the optics themselves. Glare and reflections from inside and outside...

I want to use 2 in eyepieces with my SCT and/or Mak. Will there be vigne...

Vignetting is normal in any real optical system. Some light must be blocked because of off-axis distortions or aberrations from the optics themselves. Glare and reflections from inside and outside...

How far should the NexGuide’s exposure value be decreased? What if the s...

In general, guiding is most accurate when using the shortest exposure time possible. In order to get the shortest exposure time, try the following techniques.First (in Preview mode), set the...

How far should the NexGuide’s exposure value be decreased? What if the s...

In general, guiding is most accurate when using the shortest exposure time possible. In order to get the shortest exposure time, try the following techniques.First (in Preview mode), set the...

I’m using the NexGuide autoguider and the star appears bloated as I go f...

You need to optimize your focusing technique. Focusing should be done in the Preview mode, which NexGuide is in when it's first powered on. First, set the zoom level at least...

I’m using the NexGuide autoguider and the star appears bloated as I go f...

You need to optimize your focusing technique. Focusing should be done in the Preview mode, which NexGuide is in when it's first powered on. First, set the zoom level at least...