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APO140FL F/7

APO140FL F/7

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APO140FL F/9.6

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Early gears for seeing Venus atmosphere

Early gears for seeing Venus atmosphere

The 1761 Venus transit marked a breakthrough in observing Venus's atmosphere, thanks to advancements in telescopes. Astronomers used diverse instruments, from singlet refractors to Dollond's achromatic doublets, revealing fine details like a luminous arc around Venus. Solar activity likely played a key role.

ADC Limited Trial Program

ADC Limited Trial Program

Telescope Engineering Company would like to announce a new 30-day ADC (Atmospheric Dispersion Corrector) trial for TEC customers that may be interested in purchasing an ADC, but unsure if it fits their needs.

The telescope which discovered the Venus’s atmosphere

The telescope which discovered the Venuss atmosphere

John Dollond and Mikhail Lomonosov, two 18th-century pioneers, made major discoveries—Dollond’s achromatic telescope and Lomonosov’s identification of Venus’s atmosphere in 1761. Using a Dollond refractor, Lomonosov observed optical effects confirming Venus’s thick atmosphere.

The First Telescope

The First Telescope

Hans Lipperhey, a spectacle-maker, combined a concave and convex lens into the first telescope. But were both lens types in shops enough to create one? Perhaps he was just checking the convex lens surface? A concave lens shrinks images, unlike a convex magnifier, which forms a Keplerian telescope. So, which came first?

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https://www.telescopengineering.com/page/products/
Explore Telescope Engineering Company’s full lineup of apochromatic refractor telescopes, built for exceptional performance in visual observation and astrophotography. TEC’s precision-crafted optics and mechanical designs serve the needs of professional and advanced amateur astronomers.
TEC telescopes,apochromatic refractors,triplet refractor telescopes,professional telescopes,fluorite refractors,high-performance telescopes,

Home | Telescope Engineering Company

https://www.telescopengineering.com/
Telescope Engineering Company (TEC) creates premium apochromatic refractors and optical systems, trusted globally for precision, innovation, and quality. Explore TEC's advanced telescopes, designed for both professionals and enthusiasts, delivering exceptional clarity.
Telescope Engineering Company,apochromatic telescopes,high-quality optics,precision-engineered telescopes,TEC telescopes,professional astronomy telescopes,astronomical optics,innovative telescopes,apochromatic refractors,premium telescopes,astronomy equipment