Matthew Paul
- February 18, 2026
I used to believe good quality eyepieces always came at the expense of affordability, but having the opportunity to test and use the Apertura Panorama eyepieces, I’ve found there is an option where both quality and affordability go hand in hand. When...
- November 06, 2025
The Newtonian telescope design uses a primary mirror and secondary mirror to focus and direct light to the eyepiece or camera sensor. The primary mirror is the larger focusing mirror at the bottom of the telescope tube.
- August 01, 2025
In recent years imaging Newtonian telescopes have become extremely popular due to their “fast optics” and high-performing value per dollar when compared to refractors or other more complex optical systems.
- August 01, 2025
Collimation can be intimidating, especially for the first time after your new telescope makes a trip from our facility to its new home, and we understand that. Knowing the process of collimation, as well as the intended goal is extremely helpful.
- January 09, 2025
Astronomical filters work by blocking certain types of light and allowing other types to pass through almost unaltered. Filters do not enhance or multiply light; they simply block undesired wavelengths.
- October 08, 2024
Apertura has released an update kit for some owners of the CarbonStar 150 Imaging Newtonian. The first release of the telescope featured a 3D-printed back plate and standard focuser tension knob. The primary mirror cell was sensitive to clip tensions...
- June 04, 2024
The Cassegrain, or Classical Cassegrain as it has become known, is a well-corrected two-mirror telescope that was developed by Laurent Cassegrain and is the foundational design of many of the most popular telescopes today.
- January 31, 2024
Apertura is a company that seeks to provide better performance at a great price. When they turned their attention to focus masks, they found offerings that were of good quality but not wholly optimized and budget options that were less than ideal in terms...
- June 27, 2023
There is no doubt that the factory configuration of Apertura Dobsonian telescopes offers an incredible user experience. While this is true, we continued our quest to increase the ease of use and performance of this telescope - adding to the already wildly...
- March 02, 2023
Dew can be an absolute nightmare for any amateur astronomer; this includes visual astronomers as well as astrophotographers. Looking through your eyepiece, you’ll notice that the views will be significantly less clear, with what appears to be a film drawn...
- December 30, 2022
Collimation is alignment of the optics or process of aligning the optics inside a telescope. The more accurate the alignment of our optics are, the greater the chance that the telescope will function at its highest level of performance and provide a more...
- November 03, 2022
Congratulations on purchasing Apertura Collimation Knobs for Celestron NexStar 130 SLT & StarSense Explorer 130AZ DX Telescopes. Get ready to improve your experience under the night sky by allowing for easier, tool-free collimation!
- October 21, 2022
There is no doubt that the factory configuration of Dobsonian telescopes offer fantastic performance. The many positive user reviews and recommendations back this statement. And while this is true, we took things a step further by looking to increase...
- September 30, 2022
Congratulations on your purchase of the Apertura Portable Telescope Power Supply - 155 Wh Lithium Battery! Let's go over a few ways you can remotely power your astronomy or astrophotography rig with this portable, lithium-ion power supply from Apertura...
- September 22, 2022
Congratulations on purchasing Apertura Collimation Knobs for Celestron 8" Edge HD Telescopes. Get ready to improve your experience under the night sky by allowing for easier, tool-free collimation!
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