Скачать или смотреть $400 Telescope vs. $400 Telescope

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🔭 The Telescopes Tested 🔭
Svbony 70mm Quad: https://www.svbony.com/sv503-70mm-fla...
Askar 80ED: https://bit.ly/3TXQ23H
Askar 1x flattener for the 80ED: https://bit.ly/4o29zxC
Askar 0.85x reducer for the 80ED: https://bit.ly/4ffqF7d
Askar 0.7x reducer for the 80ED: https://bit.ly/46qEX2v
Askar 71F Flat-field refractor: https://bit.ly/47zGKAH

Other equipment used in testing:
⚙️ Sky-watcher EQ-AL55i Pro Mount: https://bit.ly/40BtJV7
📷 ZWO ASI2600MC Air: https://bit.ly/3zn4wU6
🔴 Svbony SV220 Dual Narrowband Filter: https://www.svbony.com/sv220-dual-ban...

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Contents
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0:00 Intro / disclosures
0:56 Visual observing report
3:49 Mechanics and physical characteristics
7:03 Attaching a camera
11:34 Tech. specs for imaging tests
13:18 Single exposures
14:09 Stacked exposures
20:30 Abberation inspector (corner stars)
21:16 BlurXterminator test
24:35 Dual narrowband filter test
25:52 Final processed images (analysis)
28:59 Final images and summary of findings
30:58 Credits (Patreon)

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Video Disclosures
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Askar and Svbony sent me these telescopes for review. Neither company is a paid sponsor nor do they have any input into what I say about their products. My review policy is available here: https://www.nebulaphotos.com/reviews/ And I'm happy to discuss it with anyone that has questions. I do use affiliate links in my video descriptions. This means if you click one of my links and make a purchase, I get a small commission. Your price will never go up!

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Channel Disclosures
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I am a member of the High Point Scientific, Agena Astro, eBay, ZWO, All-Star Telescopes, B&H Photo Video, Astrobin, Svbony, TTArtisan, Turing, William Optics, and Amazon affiliate programs. Product links in my video descriptions are typically affiliate links, which means, at no extra cost to you, I will make a commission if you click them and purchase something. I also have working relationships with the following companies/brands to receive products to test: Askar, ZWO, Pegasus Astro, DwarfLab, OG Star Tech, Svbony, High Point Scientific, Agena Astro, QHYCCD, William Optics, Airy Disk, SmallRig, Venus Optics, Astrogear.net, Night Sky Camera, Woodland Hills Camera & Telescope, Hunt's Photo & Video.