We received a nice account from Fred Miller of Portland, TX, relating his experience at this year’s Texas Star Party with a Tactical Night Vision Company (TNVC) night-vision monocular outfitted with our astronomy adapters. We called him on the phone to discuss putting his report on our blog . He agreed and added that the feel of sweeping the sky with night-vision setup was that of the proverbial “kid in a candy store”.
All Tele Vue telescopes now come standard as optical tube assemblies (OTA) that can be turned into “complete” units with optional, customized accessory packages. The package costs can be substantially less than pricing each component individually. In a prior installment we discussed the packages for the Tele Vue-60, Tele Vue-76, and Tele Vue-85 scopes. Here we’ll take up the multi-purpose Imaging System, or “is,” scopes and their associated accessory packages.
All Tele Vue telescopes now come standard as optical tube assemblies (OTA) that can be turned into “complete” units with optional, customized accessory packages. The package costs can be substantially less than pricing each component individually. This blog takes you through the changes for the Tele Vue-60, Tele Vue-76, and Tele Vue-85 models. Accessory packages for the larger scopes will be covered in a future blog.
For most people an overhead pass of the International Space Station (ISS) looks somewhat like a bright airliner crossing the sky. Not for Szabolcs Nagy: with his 1,200mm Dobsonian scope and 2.5x Tele Vue Powermate™ he can get up-close video of this bright streak that resolves into individual solar panels, modules, and even docked capsules!
Most amateur astronomers will ignore the full moon. The best telescopic observations can be had before and after the moon is full. For instance, when the moon is half-illuminated, at first quarter, as it waxes toward full. Along the night and day terminator line bisecting the moon are the boldly cast shadows of mountains, craters, rilles, and basins. This is where your telescopic lunar observations should begin.
You may know that Tele Vue’s Paracorr Type-2 accessory is the color-free cure for coma (star elongation) in fast Newtonians. But did you know that Paracorr™ users can enjoy their coma corrected Dob/Newts with two eyes using Bino Vue? Continue reading “Technote: Using Bino Vue with Paracorr”
Roger Hutchinson is a noted amateur astrophotographer who produces much of his planetary, solar, and even comet work from what he admits are the “light polluted skies of southwest London”. His imaging work is showcased on his aptly named The London Astronomer website as well as on flickr, Instagram, Twitter and Facebook.
Roger’s interest in imaging the sky runs back to the age of 11 and has culminated as the recent recipient of the Insight Astronomy Photographer of the Year award in the Planets, Comets & Asteroids category for 6-month-long effort to capture the evolution of the phases of Venus. Some of Roger’s social media profiles include a picture of the “Captain” standing with “Bleep” and “Booster” from the BBC animated series “Bleep and Booster”. He says “I have two kids myself so thought the image was kind of appropriate. Suitably space related and brings back some happy childhood memories.”
This interview of Al Nagler by Brian Ventrudo was published in The Equinox newsletter of AstronomyConnect.com on October 31, 2017. Reprinted with permission
A Q&A with Al Nagler
Looking Back (and Ahead)
with Tele Vue’s Co-Founder
When Al Nagler talks, amateur astronomers listen.
Nagler, of course, is a legend in the amateur astronomy community, the founder of Tele Vue Optics along with wife Judi, and inventor of the Nagler eyepiece. For two generations he’s been a fixture at star parties and astronomy expos where he dispenses wisdom and demonstrates his latest optical creations, all while establishing bonds and friendships with hundreds of stargazers over the years with his combination of razor-sharp technical acumen and boundless enthusiasm.
Al was beguiled by astronomy and stargazing after a visit to Hayden Planetarium with his father in the late 1940s. He grew up in the Bronx and had the talent and good fortune to attend the famous Bronx High School of Science, the alma mater of thousands of renowned engineers and scientists, including eight Nobel Prize winners. As part of a class project, Nagler used the school’s facilities to design and build an 8-inch f/6.5 Newtonian reflector that weighed 350 lbs! In time, Al put his talents to work at the nearby Farrand Optical Company from 1957-1973, where he helped develop the large and complex optical systems for NASA’s Gemini docking and Apollo lunar landing simulators. Not a bad way to make a living!
Continue reading “Q&A with Tele Vue’s Al Nagler”
We recently received an interesting letter from Stephen Pizzo, discussing his solar imaging work with Tele Vue Powermate™ amplifiers. Most of the time (90%), he uses our 4x Powermate™ on a Hydrogen-α scope — either a LS152THA (900mm focal length) or LS230THa (1,600mm focal length). This extends the effective focal length of these dedicated solar scopes to 3,600mm or 6,400mm for breathtaking, close-up images of the activity on the Sun’s chromosphere. The choice of scope depends on the seeing conditions. If conditions won’t support the 4x, Stephen employs our 2x Powermate™ with the LS230THa for an effective focal length of 3,200mm. Stephen also notes that he normally uses 3″ to 4″ of extension between the 4x Powermate™ and the imager to get another 0.5x of magnification. The imager itself is very unique: a RED Dragon Epic monochrome 18-megapixel camera — a camera usually associated with the world of professional digital cinema.
He shared the images created with the bigger scope and 4x Powermate™ with us. As you can see below, they are spectacular!