ZWO SeeStar S50 Pro

ZWO SEESTAR S50 PRO

The next-generation flagship — a larger sensor, dual-lens design, and pro-grade tracking for serious deep sky work.

The ZWO SeeStar S50 Pro is a significant leap over the original S50: a larger 1/1.2" telephoto sensor paired with a dedicated 4K wide-angle camera, a 4-element apochromatic lens with ED glass, and a triple filter system (light pollution, dark frame, and IR-cut). A new 10,000mAh battery delivers up to 9 hours of runtime, and the upgraded two-section tripod adds far more flexibility in the field. Equatorial Mode enables longer, smoother tracked exposures, while the wide-angle camera unlocks one-tap Milky Way arch stitching and 8K panoramas that the standard S50 simply can't do.

Specifications

ApertureTelephoto: 50mm f/5.2 · Wide-angle: 3.4mm f/1.75
Focal LengthTelephoto: 260mm (880mm equiv.) · Wide-angle: 6mm (35mm equiv.)
SensorTelephoto: OmniVision OS08B10, 1/1.2" (8.3MP) · Wide-angle: Sony IMX586 (8.3MP)
Field of ViewTelephoto: 2.8° (portrait) · Wide-angle: 63° (portrait)
Weight2.8 kg
FilterDual-band (OIII 30nm/Hα 20nm) + dark frame + UV/IR-cut (telephoto); UV/IR-cut (wide-angle)
PowerUSB-C, 5V/3A or 12V/3A
ConnectivityWiFi (5GHz/2.4GHz), Bluetooth, USB-C
Features10,000mAh battery (~9h runtime), 128GB storage, Equatorial Mode, Plan Mode, ASCOM Alpaca support, dual 4K cameras

Pricing

New

~$899–$999 USD (launch pricing)

Used

Not yet available on the used market (2026 release)

Pros & Cons

✓ Pros

  • +Larger telephoto sensor than the S50 — noticeably more detail on deep sky targets
  • +Dedicated wide-angle 4K camera enables one-tap Milky Way arch and 8K panorama stitching
  • +Triple filter system (light pollution + dark frame + IR-cut) improves signal quality
  • +Massive 10,000mAh battery — up to 9 hours of unattended imaging
  • +128GB of onboard storage (~100GB usable)
  • +ASCOM Alpaca support opens the door to N.I.N.A. and other advanced astro software
  • +Upgraded two-section tripod with more angle flexibility
  • +Equatorial Mode plus Plan Mode for fully unattended overnight sessions

✗ Cons

  • New and expensive relative to the standard S50 and S30 Pro
  • Larger and heavier than the S30 Pro — less pocketable
  • Very new to market — limited real-world track record and used pricing data
  • Same focal length constraints as other SeeStars — not built for planetary imaging