HyperStar 8 v4

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} .hs-faq-q { font-weight: 800; font-size: 1rem; color: #111; margin: 24px 0 6px; } .hs-faq-a { font-size: 0.92rem; color: #444; line-height: 1.7; margin: 0; } /* ── Comparison image ──────────────────────────────────────────── */ .hs-comparison { text-align: center; margin: 28px 0; } .hs-comparison img { max-width: 75%; border-radius: 4px; } /* ── Demo video ────────────────────────────────────────────────── */ .hs-video-embed { margin: 20px 0 8px; } .hs-video-embed iframe { max-width: 100%; border-radius: 4px; } @media (max-width: 500px) { .hs-intro { font-size: 1rem; } .hs-addons { grid-template-columns: 1fr; } .hs-comparison img { max-width: 100%; } } Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 8 replaces the secondary mirror of any Fastar-compatible C8 SCT and transforms it from a f/10 planetary scope into a f/1.9 imaging powerhouse — 25× faster, with a coma-free field over 4° wide. No guiding, no equatorial wedge required. Camera Compatibility The Standard Camera Adapter included with every HyperStar 8 has an M42 threaded top and is pre-set for cameras with 17.5 mm of backfocus and accepts 2" mounted M48 Filters. Not a 17.5 mm backfocus camera? No problem! We make DLSR adapters, less common backfocus cameras and even custom adapters if you need. What can we make you custom? Browse the HyperStar Adapter page → The Upgrade Filter Slider Upgrade Swap your choice of narrowband or broadband filters at the focal plane without ever touching the camera. Comes with both M42M and M54M swappable top plates and ready for cameras with 17.5mm of backfocus. Thread A M42 male Thread B M54 male Backfocus 17.5 mm The Hyper-Bag Rugged Padded Soft Case. A padded, tough, zip-around case in genuine CORDURA fabric. We get a little jumpy when we hear rattling in the desert.Nothing should rattle on the road to dark skies. What's in the box?Everything Included ● HyperStar 8 (C8 v4) Included f/1.9, 390 mm. The complete f/1.9 imaging lens. ● EdgeHD Adapter Ring Included Fits the same unit to EdgeHD optical tubes. ● Standard Camera Adapter Included M42 threaded top · accepts 2" mounted filters · 17.5 mm backfocus cameras. ● Secondary Mirror Holder Included Keeps your secondary safe when HyperStar in use. ⊕ Filter Slider Upgrade Optional M42 + M54 male, ready for 17.5mm backfocus cameras. The Details Technical specifications Model HyperStar 8 (C8 v4) Focal ratio f/1.9 Focal length 390 mm Speed increase 25× faster than stock f/10 Field of view Up to 4.1° — coma-free, flat field Max sensor size 28 mm Compatible Optical Tubes Celestron C8 (standard SCT) and EdgeHD 8 — via included EdgeHD Adapter Ring HyperStar backfocus with included camera adapter and Filter Slider Upgrade 17.5 mm Included adapter threads M42 male top (M54 top sold separately) Optional Filter Slider Threads Both M42 male and M54 male Origin 🇺🇸 Designed and built in Tucson, Arizona. HyperStar Version Comparison FAQ Do I need the Filter Slider to use filters with the HyperStar? No. The Standard Camera Adapter that ships with every HyperStar has an M42 threaded top that accepts one 2" mounted filter — ideal for a broadband, dual-band or IR-cut filter with a one-shot color camera. The Filter Slider is a helpful upgrade for monochrome shooters or anyone wanting to change filters throughout your imaging session. What cameras does the included adapter work with? The Standard Camera Adapter is M42-threaded and pre-set for 17.5 mm backfocus — which covers most popular cooled astrocameras. If your camera needs a different thread size or backfocus, check out our HyperStar Adapter page. Are HyperStars hard to focus? Not really. A Bahtinov mask, an autofocuser like the EAF, or any software showing FWHM all work well. The fast f/ratio does make backfocus more critical — which is why our adapters are machined with precise accuracy. What telescopes are compatible? Any factory Fastar-compatible C8 SCT. Older non-Fastar scopes can be upgraded with our C8 Conversion Kit. The HyperStar 8 works on both standard C8 and EdgeHD 8 OTAs thanks to the included EdgeHD Adapter Ring. Will I need spacers for correct backfocus? No. Every HyperStar ships with the correct adapter already set to the right backfocus. Install the HyperStar, attach your camera, and start imaging. If I have a Non-EdgeHD HyperStar can I use the EdgeHD Adapter Ring? Yes — non-HD v3 and v4 HyperStars can use the EdgeHD Adapter Ring to mount on the same-size EdgeHD OTA. The HyperStar 9.25 is unique and works on both standard and EdgeHD 9.25 tubes without any additional adapter. See It in Action HyperStar imaging under light-polluted skies on an alt-az mount: Show more