I need a case or bag for my scope and I can’t find it on your website. W...

Celestron no longer carries cases, etc. for all the telescopes and tripods we sell. There are several other companies that have products useful for storing and or transporting your astronomical...

I need a case or bag for my scope and I can’t find it on your website. W...

Celestron no longer carries cases, etc. for all the telescopes and tripods we sell. There are several other companies that have products useful for storing and or transporting your astronomical...

My refractor shows color fringes since it’s not an apochromatic design. ...

Many refractors are two-element conventional achromatic designs, which leave what’s called residual color. This means the designs don’t fully remove all the color left over from dispersion of light...

My refractor shows color fringes since it’s not an apochromatic design. ...

Many refractors are two-element conventional achromatic designs, which leave what’s called residual color. This means the designs don’t fully remove all the color left over from dispersion of light...

The AstroMaster 114 models have a 1000 mm focal length. Why are the tube...

No. Both tubes are identical in optical design. The reason the tube is so short is because the optical design incorporates a Barlow lens built into the focuser. This lens...

The AstroMaster 114 models have a 1000 mm focal length. Why are the tube...

No. Both tubes are identical in optical design. The reason the tube is so short is because the optical design incorporates a Barlow lens built into the focuser. This lens...

I want to match the image scale with my DSLR or CCD camera to my scope’s...

The basic imaging element of today’s electronic camera is the pixel. It can be thought of as the individual cell or unit on the chip (picture element) that actually captures...

I want to match the image scale with my DSLR or CCD camera to my scope’s...

The basic imaging element of today’s electronic camera is the pixel. It can be thought of as the individual cell or unit on the chip (picture element) that actually captures...

What is the optimized image circle for the EdgeHD OTAs and Reducers?

The EdgeHD optics are designed to optimize an image circle 21mm in radius from the center of the field of view. Doubling this figure gives an image circle 42mm in...

What is the optimized image circle for the EdgeHD OTAs and Reducers?

The EdgeHD optics are designed to optimize an image circle 21mm in radius from the center of the field of view. Doubling this figure gives an image circle 42mm in...

My mount is moving in the wrong direction when I use the direction arrow...

You will need to review and adjust the button direction logic in your hand control menu. The directions are user-adjustable, so you can match the direction the star moves in...

My mount is moving in the wrong direction when I use the direction arrow...

You will need to review and adjust the button direction logic in your hand control menu. The directions are user-adjustable, so you can match the direction the star moves in...