What do aplanatic optics do?

Aplanatic optics are designed to eliminate both spherical aberration and coma, two major aberrations (image defects) found in telescopes. The end result is sharper images across a much wider field...

What do aplanatic optics do?

Aplanatic optics are designed to eliminate both spherical aberration and coma, two major aberrations (image defects) found in telescopes. The end result is sharper images across a much wider field...

My EdgeHD optical tube assembly (OTA) has four small tapped holes along ...

All EdgeHD OTAs have Fastar-compatible secondary cells. Because Fastar (and the third party system, HyperStar) is very sensitive to centering of the lens optics relative to the primary mirror, all...

My EdgeHD optical tube assembly (OTA) has four small tapped holes along ...

All EdgeHD OTAs have Fastar-compatible secondary cells. Because Fastar (and the third party system, HyperStar) is very sensitive to centering of the lens optics relative to the primary mirror, all...

When using my autoguider and /or autoguiding program, I’m not getting an...

First, make sure you have the mount’s autoguiding rate set properly. This is found under Scope Setup > Autoguiding Rate in your hand control menu. Note that 00 is a...

When using my autoguider and /or autoguiding program, I’m not getting an...

First, make sure you have the mount’s autoguiding rate set properly. This is found under Scope Setup > Autoguiding Rate in your hand control menu. Note that 00 is a...

I accidentally took apart my Celestron 20mm erect image eyepiece. How do...

Care must be taken to keep the disassembled pieces clean and lenses unscratched while reassembling the eyepiece. Prepare a clean surface on a desk or table for the reassembly.The disassembled...

I accidentally took apart my Celestron 20mm erect image eyepiece. How do...

Care must be taken to keep the disassembled pieces clean and lenses unscratched while reassembling the eyepiece. Prepare a clean surface on a desk or table for the reassembly.The disassembled...

Lynkeos, Image Processing Software for Mac OS X

Download the latest Lynkeos, Image Processing Software for Mac OS X HERE

Lynkeos, Image Processing Software for Mac OS X

Download the latest Lynkeos, Image Processing Software for Mac OS X HERE

oaCapture, Camera Control Software for Mac OS X

Download the latest oaCapture, Camera Control Software for Mac OS X HERE

oaCapture, Camera Control Software for Mac OS X

Download the latest oaCapture, Camera Control Software for Mac OS X HERE