---
title: "Astrophotography Cameras — Cooled CMOS & DSLR"
canonical: https://stackingstarlight.com/equipment/camera
description: "Astrophotography cameras: cooled CMOS (mono or color) vs DSLR/mirrorless. Cooling, quantum efficiency, and read noise."
---

# Astrophotography Cameras — Cooled CMOS & DSLR

> Astrophotography cameras: cooled CMOS (mono or color) vs DSLR/mirrorless. Cooling, quantum efficiency, and read noise.

Dedicated astro cameras use **active cooling** (Peltier to −20°C or colder) to cut thermal noise (~64× vs room temperature) and make dark frames repeatable, plus high quantum efficiency (90%+) and low read noise (1–3 e⁻). **Mono cooled CMOS** (ASI294MM, QHY268M) give the best quality but need filters. **Color/OSC cooled CMOS** (ASI533MC, QHY268C) simplify the workflow. **DSLR/mirrorless** cameras work well to start but can't regulate temperature. Start with whatever you have; upgrade to a cooled camera when ready.

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Source: [https://stackingstarlight.com/equipment/camera](https://stackingstarlight.com/equipment/camera) · Part of [Stacking Starlight](https://stackingstarlight.com) by Michael Kalika.

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