Popular Articles

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Which scope aperture is best for different kinds of objects?

I’m using a spotting scope and/or astronomical scope for photography. Wh...

The approximate photographic magnification can be determined as follows. Take the focal length of the main optical system in millimeters and divide by 50. For example, a spotting scope used...

I’m using a spotting scope and/or astronomical scope for photography. Wh...

The approximate photographic magnification can be determined as follows. Take the focal length of the main optical system in millimeters and divide by 50. For example, a spotting scope used...

I'm getting the message Digital Microscope Suite 2 cannot support your o...

Even though the #44421 Digital Microscope Imager itself is fully plug-and-play for Windows 7 32-bit and 64-bit, the image capture software packaged with some of the microscopes may show this...

I'm getting the message Digital Microscope Suite 2 cannot support your o...

Even though the #44421 Digital Microscope Imager itself is fully plug-and-play for Windows 7 32-bit and 64-bit, the image capture software packaged with some of the microscopes may show this...

Why is my Deluxe LCD Digital Microscope #44345 zoom feature not working?

The touch screen controls the functions of this microscope.In order to use the zoom feature, touch the screen with your forefinger or thumb and slowly drag your finger to either...

Why is my Deluxe LCD Digital Microscope #44345 zoom feature not working?

The touch screen controls the functions of this microscope.In order to use the zoom feature, touch the screen with your forefinger or thumb and slowly drag your finger to either...

My 114SLT/130SLT telescope gives tilted views when I’m looking at terres...

There is nothing wrong. These scopes are Newtonian reflectors that normally provide inverted views–as they are designed for astronomical use. On the SLT reflector telescope tubes (OTAs), there is a...

My 114SLT/130SLT telescope gives tilted views when I’m looking at terres...

There is nothing wrong. These scopes are Newtonian reflectors that normally provide inverted views–as they are designed for astronomical use. On the SLT reflector telescope tubes (OTAs), there is a...

I’m using my mount with an autoguider and getting mixed results. What ar...

There are no official settings to use with Celestron mounts that support autoguiders (these scopes have ports that will directly interface with any of the SBIG (Santa Barbara Instrument Group)...

I’m using my mount with an autoguider and getting mixed results. What ar...

There are no official settings to use with Celestron mounts that support autoguiders (these scopes have ports that will directly interface with any of the SBIG (Santa Barbara Instrument Group)...

I’m setting up my AstroMaster equatorial mount. Should the declination (...

Yes, towards the rear or mirror end of your scope is the usual position for the DEC control.However, because the scope is mounted inside tube rings and it has a...

I’m setting up my AstroMaster equatorial mount. Should the declination (...

Yes, towards the rear or mirror end of your scope is the usual position for the DEC control.However, because the scope is mounted inside tube rings and it has a...