- Hubble Optics 14 inch Dobsonian - Part 2: The SiTech GoTo system
- iStar Optical’s Phantom FCL 140-6.5 review
- Who’s Afraid of a Phantom: Istar Phantom 140mm F/6.5, that is?
- SHARPSTAR 94EDPH APOCHROMATIC REFRACTOR
- My Losmandy G11T review
- FIELD TEST: THE NOH CT-20 ALT-AZ MOUNT
- SkyTee-2 Alt/Az Mount Review
- SharpStar Askar ACL200 200-mm f/4 astrographic telephoto lens
- A review of the Unistellar EVscope
- Astrotrac 360 tracking platform – first impression
- FIELD TEST: CARL ZEISS APOCHROMATIC & SHARPEST (CZAS) BINOVIEWER
- Omegon 32mm 70º SWA eyepiece review
- Review of iPolar hardware and software for polar alignment
- Review of the Hubble Optics 14 inch, f/4.6 Premium Ultra Light Dobsonian Tele...
- My experience with the Starizona Landing Pad
CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.
Feb 01 2022 11:14 AM | Chris Westland in User Reviews
This is the second in the set of reviews about my Hubble Optics 14” Dobsonian, where I relate the performance of the installed GoTo system. I completed adding the Hubble Optics / SiTech GoTo system to my Hubble Optics 14” f/4.6 dob, but did encounter a bit of a learning curve on this, one which I’d like to share with anyone planning on upgrading any Dob to full GoTo.
Dec 02 2021 12:01 PM | Psion in User Reviews
From what I was able to see, I conclude that the optics belongs to a Super APO class, which is highly suitable for both visual observing and astrophotography. Unfortunately, I have to state that the TEC 140 lost in the direct side-by-side chromatic aberration comparison test, otherwise the TEC is practically perfect from the optical point of view. The Phantom FCL 140-6.5 is, therefore, a great all-round refractor, and the manufacturer has promised to remedy the minor mechanical issue with the amount of “grip” of the rotary lock. Therefore, iStar Optical can be congratulated on a very well made optical instrument.
Nov 01 2021 05:00 AM | Larry Carlino in User Reviews
The Sharpstar 94EDPH turns out to be a competent instrument and a good value for its $1495 asking price. It's a very good deep-sky telescope, is airline portable, and is, in all probability, a good choice for imagers, the 0.8 focal reducer yielding a fast optical system. As to the consistency of the optics and quality control, a sample of one has little statistical validity. My particular scope might be better than average (or worse), and the QC checklist from Sharpstar failed to catch the balky focuser and sagging dew cap.
Nov 01 2021 05:00 AM | ABQJeff in User Reviews
The Istar Phantom 140mm f/6.5 is a new entry in the large (5”+) triplet APO world. For the price to performance it is an excellent option. The vendor is already implementing upgrades (eg 80mm removable section from OTA tube) and recognizes need to make further improvements in its mechanics (eg 2” twist tight clamp). The optics are superb and are even better than the advertised 0.9 Strehl minimum guarantee. If you are interested in a super high performing 5+” triplet APO, that is much less than comparative peers, don’t be scared, I highly recommend you take a look at a Phantom!
Oct 01 2021 05:00 AM | Jeffmar in User Reviews
In general I really like my G11T. It is well built, should last for decades from what other owners of Losmandy mounts say. It seems to work really well with auto guiding. It is very stable even with my C14. It is very different from my Celestron mounts and to be fair It took a while for me to learn how to use those mounts also.
Sep 01 2021 05:00 AM | BillP in User Reviews
After several weeks of field use of the NoH CT-20 mount for general astronomical observing with both my TSA-102 and APM-152 refractors, I found the operation and use of this mount to be highly intuitive in the field. The axis friction knobs are conveniently located and are tactile-distinctive from the saddle plate knobs that hold the telescope on the mount, so there was never any question in the dark as to which knob-type I was operating. Operation of the mount was also smooth and precise throughout the testing and general field observing sessions. At no time did I ever find that the CT-20 mount was anything but superlatively capable to handle even my large 6-inch f/8 refractor.
Jul 01 2021 05:00 AM | Michael Covington in User Reviews
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.
Jun 01 2021 05:00 AM | bmwscopeguy in User Reviews
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.
Jan 31 2021 12:31 PM | Magnar W. in User Reviews
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.