- APM 140mm DOUBLET APO REFRACTOR
- Comparison of the Boltwood II and Sky Alert Cloud Sensors
- Chile Dilly!
- MONO & BINO VIEWING WITH THE BAADER MORPHEUS 17.5MM EYEPIECE
- The Eye of the Flak (Das Auge der Flak)
- COMPARING THE MASUYAMA 25MM 52°, 25MM 65°, AND 26MM 85°
- BRESSER 4 Inch f 4.5 AR 102XS Refractor visual observers’ REVIEW
- New Moon Telescopes 16”f/4
- The Ages of Astrophotography 1839-2015
- Stardust Gallery LED Lightbox and Metallic Print Review
- Rayox Saddle Review
- MoonLite NiteCrawler Focuser
- Celestron Cometron 7x50s Review
- Astro-Devices (of Ukraine) Parallelogram Standard II Pro
- Review: Explore Scientific 16”, Europe edition, late 2016
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.
The Rayox dovetail saddle (regular price $449 with adapter through Woodland Hills Telescope, with an initial discount for Cloud Nights members) is a breakthrough product that has significant advantages compared to existing systems, especially when working with heavy equipment. If this system had been available earlier, I could have avoided some potentially dangerous situations…
I have been using telescopes for film and limited CCD use for well over 20 years, and because of extensive business travel coupled with a spouse who cannot access the observatory due to disability, I needed a product that would be solid, reliable, allow for remote precise FOV rotation, temperature compensation, no requirement to find a zero-point and reinitialize the position of the drive motors, and easily adaptable to various optical tubes. As an engineer and former aircraft mechanic, I demand a great deal out of the build quality of anything that I own as well.
This review describes the Celestron Cometron 7x50s including my initial impressions along with examination during actual use for around 1 month. I live in a suburb in New England under Bortle 6-7 skies. I have 3 telescopes, the oldest of which I have had for one year.
This will not be a comprehensive, or even scientific review. I will just share what I would have wanted to know if considering purchasing one of these parallelograms.
I have been considering buying or making a 16 incher for a while now. Mirrors only (if you wanted to make your own scope) cost at least 1200€ to 1400€ (Hubble optics or GSO, not counting import duties and shipping cost). So, when I learned that Explore Scientific had a European sales on their Ultra Light series, placing the 16” at 1698€, I jumped on it!
This review describes the VITE 2x Barlow lens including my initial impressions of build and optical quality. I observe from a suburb in the southeast U.S. I have one telescope, an 8-inch Dobsonian, and have had it for approximately five years. The photos included in this review represent my first crack at astro-imaging. I wanted to try prime focus photography with my DSLR but my focuser does not have enough in-travel to do so. I used the Barlow to achieve focus with my telescope/focuser/camera combination.
With such a long dry spell in 2016, I started pondering how to get the most bang for my buck when I finally did get out with the scope. Just think. For the past fifty years, I’ve been manually searching for and finding objects, up to around two-thousand at this point. However, as time has worn on, I thought about it. On the past few observing sessions, going back a couple of years, my yield slowly dwindled. Why?
When doing astrophotography, most of us use a laptop for camera control, autoguiding and image display. At public outreach stargazes we often just want to take a single time exposure in order to show visitors what 'that fuzzy blob' they see in the eyepiece really looks like, it's often not at all convenient to set up a laptop. A tablet is an excellent tool for image display, but there's still the problem of a USB cable from the tablet to the camera. Many tablets don't even have a full size USB connection or require a special adapter or cable, but they all have WiFi. That's great if you're using a camera that has WiFi capability but what about those DSLRs that don't? Enter the TP-Link MR3040 Wireless Router.
Sometimes, aperture fever can lead to a severe case of brain damage. The kind that compels you to make a purchase that by all acceptable standards would be considered insane. Such is the case for those who decide to buy a gigantic binoscope. Already much has been said about the huge disadvantages of the binodobson. After all, there must be a reason why almost no telescope manufacturing company offers them. But are these prejudices true or are they merely based on assumptions without any real experience to back them up? In order to find out, me and my friends of the astronomical society of Trentino in northern Italy have put my new 18” binodobson to the test.
Wireless control of telescopes is quite handy as it frees the observer from being tethered to the scope mount by a wire. In fact it is clear that this is the wave of the future. Astronomy equipment tends to lag behind the technology curve—Celestron’s hand controllers are about 20 years out of date in terms of display, wireless capability, and other areas. (Vixen’s StarBook controllers are an example of a more modern design but they are not wireless). Fortunately it is possible to not only add wireless capability, but do so with equipment that most astronomers already have (smartphones, tablets) and that can handle observing lists, display planetarium views, give detailed information on objects observed, and even in some cases speak object descriptions. In this review I want to compare briefly the two major ways to implement wireless control of Celestron telescopes: (1) WiFi, using the Celestron SkyPortal (#93973) and (2) Bluetooth, using a serial Bluetooth adapter.