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  • SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens

    Jun 29 2021 08:35 AM by covington

    I strongly recommend the ACL200 for wide-field astrophotography. It also has some uses for (fully manual) nature and landscape photography. The optical performance is exceptional, and the physical construction is unusually well suited for astronomical use.

  • Restoring an Old Star-Liner Equatorial Mount

    Jun 27 2021 11:23 AM by Ochad

    I have owned a large Star-Liner Equatorial Mount with 2 inch axes for over 50 years and in that time it has held a homemade 8 inch f/7 Newtonian, a homemade12.5 inch f/8 Newtonian, a 14 inch SC, a 6 inch refractor, an ATM 10 inch true Cassegrain.

  • A review of the Unistellar EVscope

    May 31 2021 01:48 PM by bmwscopeguy

    Well here is another product that has received a lot of hype and press, but without divulging much useful information about the telescope itself. Well needless to say, the hype worked on me….and I took delivery of my (used) Unistellar EVscope today.


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ATTN - Change in Vendor Rules . . .

19 Mar 2021
Effective 4/1/21 Vendors will no longer be able to post classified ads.   - The original intent of the Classifieds was to allow members to sell to other members. And that, combined with the rapid growth of the site, the use of the Classifieds... Full topic ›

Change in Feedback Forum location

20 Jan 2021
The admin team has decided to move the Feedback forum to the Announcements Section as Feedback ties in more with the theme of Announcements and News, since Feedback Forum includes a lot of explanations as to how CN works.    The new menu... Full topic ›

User Reviews

  • SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens

    Jun 29 2021 08:35 AM by covington

    I strongly recommend the ACL200 for wide-field astrophotography. It also has some uses for (fully manual) nature and landscape photography. The optical performance is exceptional, and the physical construction is unusually well suited for astronomical use.

  • A review of the Unistellar EVscope

    May 31 2021 01:48 PM by bmwscopeguy

    Well here is another product that has received a lot of hype and press, but without divulging much useful information about the telescope itself. Well needless to say, the hype worked on me….and I took delivery of my (used) Unistellar EVscope today.

  • Astrotrac 360 tracking platform – first impression

    Jan 31 2021 12:33 PM by Magnar W.

    After some waiting my Astrotrac 360 arrived, and the drive looks great straight out of the box. Beautifully machined, light weight, and compact. Just what I was asking for, after moving to a city, leaving my fully equipped small observatory behind me at the countryside.

  • FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER

    Jan 24 2021 01:12 PM by wapaolini

    This astronomical binoviewer is offered by Denis Levatić of Croatia (denis0007dl@gmail.com) as an after-market modification of new Zeiss binoviewer bodies. Mr. Levatić's value-added modifications to these Zeiss binoviewer bodies are then offered under the moniker of "The Carl Zeiss Apochromatic & Sharpest Binoviewer".

  • Omegon 32mm 70º SWA eyepiece review

    Jan 24 2021 12:29 PM by Tiago Ferreira

    There is no review of this eyepiece on internet and i bought it and found interesting to make a video about it.

  • Review of iPolar hardware and software for polar alignment

    Dec 05 2020 01:41 PM by stephen.kennedy

    iOptron’s iPolar upgrade, which replaces the optical scope on the iOptron SkyGuider Pro, does not accurately provide polar alignment when compared to results measured using identical equipment operating Sharpcap Pro and the specified guide camera and scope. Data was collected while simultaneously running both the iPolar alignment software and SharcapPro on the same equipment. The deficiency is consistent with an issue in the iPolar system’s calculation of altitude parameters in polar alignment after plate solving.

  • Review of the Hubble Optics 14 inch, f/4.6 Premium Ultra Light Dobsonian Telescope

    Sep 29 2020 12:35 PM by Chris Westland

    I looked at HO telescopes for some time before purchasing mine. On paper, the design is elegant, and takes advantage of the 6063-T6 aluminum alloy used in all of the telescope’s components. The sandwich mirror is innovative. The upper cage looks more rigid than a flat ring, but without being too heavy. In general the HO telescopes are unique and affordable. I am a previous owner of an Obsession Classic 20", and Dave Kriege’s scope set a standard for what I was expecting from a Dobsonian telescope.

  • My experience with the Starizona Landing Pad

    Aug 29 2020 12:31 PM by emgeesea

    I wanted to provide a review of my experience with a Starizona Landing Pad I recently purchased for my CPC 1100.

  • A quick Review of the MIGHTY MAX 12V 100AH BATTERY

    Aug 29 2020 11:20 AM by skunkwirks

    I would highly recommend this battery for your portable equipment, I am convinced.

  • Nexus II Review

    Aug 29 2020 10:54 AM by xrayvizhen

    SUMMARY: The Nexus II is an outstanding piece of equipment that allows anyone to use their Smartphone or tablet and see where their telescope is precisely pointed. It is an extremely cost effective and easy way for someone to add digital setting circles and a “Push-To” function to just about any telescope.

  • New Moon Telescopes 20”F/3.3 Review

    Aug 23 2020 12:37 PM by ilan_shapira

    This instrument answers to all my requirements from a big dob and is mostly used during my dark site trips. While double stars and planets are not the specialty of this scope, it handles them fairly well, but requires extra good conditions - backyard usage is not optimal as atmospheric disturbances dramatically affect the views. DSOs is where this instrument excels and provides the best performance under dark skies, especially with faint galaxies. During my last dark site session, after the COVID-19 restrictions lifted, I had barely time to observe myself as others lined up to view instead.

  • FIELD TEST OF THE BAADER MAXBRIGHT® II BINOVIEWER

    May 09 2020 01:38 PM by wapaolini

    Overall, using the MaxBright II Binovewer has been a transformative experience for me. I have been binoviewing with my telescopes for well over a decade, but the experience has never been what I would call a pleasant one due to the myriad of quirks I find when using the William Optics Binoviewers. However, with the MaxBright II Binoviewer all the issues I previously encountered are now fully resolved, making my experience binoviewing for the first time entirely enjoyable.




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