Knowledge Base
Find answers fast. Our comprehensive knowledge base is your go-to resource for getting the most out of your Celestron product.
Popular Articles
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...
Can all named stars listed in the hand control be used for alignment?
No, only stars brighter than or equal to magnitude 2.5 can be used for SkyAlign. Even though there are about 250 named stars in the hand control database, only 82...
Can all named stars listed in the hand control be used for alignment?
No, only stars brighter than or equal to magnitude 2.5 can be used for SkyAlign. Even though there are about 250 named stars in the hand control database, only 82...
Which microscope is best for getting pictures of a whole stamp or coin f...
You will need a microscope that has very low power. Since most coins and stamps are approximately an inch in their maximum dimension, only powers less than 10x magnification will...
Which microscope is best for getting pictures of a whole stamp or coin f...
You will need a microscope that has very low power. Since most coins and stamps are approximately an inch in their maximum dimension, only powers less than 10x magnification will...
What is the resolution of my microscope in microns and image scale in mi...
A microscope’s resolution is its ability to form separate images of lines or dots. It’s defined in terms of the actual distance between details on the object. The wave nature...
What is the resolution of my microscope in microns and image scale in mi...
A microscope’s resolution is its ability to form separate images of lines or dots. It’s defined in terms of the actual distance between details on the object. The wave nature...