Best Telescopes For Deep Sky Photography (October 2026)
Deep-sky astrophotography asks different things of a telescope than visual observing does. You’ll stack hours of exposures, so the scope needs to deliver round stars from corner to corner on a camera sensor, and it needs to be light enough for your mount to track it accurately. Aperture matters less than you’d think; focal ratio, field flatness and colour correction matter more.
Most imagers start with a small apochromatic refractor because it’s forgiving: no collimation, short focal length, and modest demands on the mount. Fast astrographs such as the RASA and imaging Newtonians gather light much faster but need more care. And in 2026 smart telescopes reached the point where some premium models compete with traditional rigs for convenience, if not for flexibility.
There have been several changes since spring. Celestron’s Origin Mark II replaced the original Origin, Sky-Watcher’s Esprit 120ED gave way to the Esprit 120 EDX, and DwarfLab announced the 90 mm Draco. The picks below cover small refractors through premium astrographs.
William Optics RedCat 51 Gen 3
The RedCat 51 is one of the most popular first astrographs ever made, and the Gen 3 with its internal WIFD focuser is the current version; older RedCat 51 models are discontinued. Its four-element Petzval design gives a flat field across full-frame sensors at f/4.9, and it’s light enough for a star tracker or small GoTo mount. High Point Scientific lists it as a 2026 fan favourite, and it’s the easiest scope here to get good results from.
Apertura 8” f/4 Imaging Newtonian
For imagers on a budget who want aperture, an 8-inch f/4 Newtonian gathers far more light than any small refractor at a fraction of the price. You’ll need a coma corrector, a careful approach to collimation and a mount that can carry the long tube, but on galaxies the extra aperture pays off fast. A budget-friendly pick for people who don’t mind some tinkering.
Askar FRA400
Askar’s FRA400 is a 72 mm quintuplet astrograph with a built-in field flattener, so there’s no separate flattener spacing to get wrong. Its 400 mm focal length frames many of the larger nebulae and galaxies nicely on an APS-C camera. It’s a strong mid-range choice that rewards beginners and experienced imagers alike.
Askar SQA55
High Point Scientific includes the SQA55 in its 2026 astrograph list, and it competes directly with the RedCat 51. The small quintuplet design produces a flat, well-corrected field without a separate flattener. It’s a good choice if you want a compact, portable widefield scope with room to grow.
Sky-Watcher Esprit 120 EDX
The Esprit 120 EDX replaces the discontinued Esprit 120ED, and it remains one of the most respected triplet apochromats in its price range. With 120 mm of aperture and a matched flattener, it delivers sharp stars and good colour correction across large sensors. It’s a premium, long-term refractor for imagers ready for a heavier mount.
Celestron RASA 6
The RASA line is the fastest way to collect photons in amateur astronomy. The RASA 6 runs at f/2, so a few minutes of exposure can show what a slower refractor needs an hour to capture. You place the camera at the front of the tube, so it suits compact cameras, and it rewards anyone imaging under limited clear skies.
Celestron Origin Mark II
Space.com named the Origin Mark II its best telescope for astrophotography in September 2026. It keeps the original Origin’s 6-inch f/2.2 RASA optics and adds an IMX678 sensor, with Celestron’s software running the whole process from alignment to stacking. It’s a premium all-in-one observatory for people who want deep-sky images without building a rig, and it costs as much as a mid-range traditional setup.
DwarfLab Draco SHO
The Draco is DwarfLab’s new 90 mm smart telescope, with a 340 mm f/3.8 catadioptric design and a large 1/1.3-inch sensor. It has built-in guiding and a rotating sensor to counter field rotation, which allows exposures of up to five minutes without a separate equatorial mount. The SHO edition adds dual-narrowband filtering for emission nebulae; it’s new for 2026, so check shipping dates with the store before ordering.
Askar 203 APO
At the very top of the range, the Askar 203 APO is an 8-inch triplet ED apochromat, a size of refractor few amateurs ever own. High Point Scientific lists it as a premium in-stock pick. It needs a heavy-duty mount and an observatory or very dedicated setup, but it produces deep, high-resolution images with refractor-quality stars.
Conclusion
Start with the RedCat 51 Gen 3 or Askar SQA55 if you want a forgiving, portable first astrograph, or the Askar FRA400 for a little more reach. Budget imagers willing to collimate will get the most aperture from an 8-inch f/4 Newtonian, and the RASA 6 is the fastest way to collect data under limited skies. For premium refractors, the Esprit 120 EDX and Askar 203 APO cover serious imaging, while the Origin Mark II and Draco SHO are the choice if you want the telescope to handle everything for you.