Telescope focal length - Astro Photography HQ

Optics & Sensors

Choosing Pixel Size: Matching Your Sensor to Telescope Focal Length

Discover how selecting the right pixel size to match your sensor and telescope focal length can optimize your astrophotography results and avoid common pitfalls.

AstroPhotographyHQ Team
November 29, 2025

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Planning & Targets

2026 October 26 – M42: The Great Nebula In Orion

NASA's Oct. 26 Astronomy Picture of the Day features M42, a star-forming nebula about…

AstroPhotographyHQ Team
October 26, 2026

Vetted

15 Best Light Pollution Filters for Astrophotography in 2027

Compare 15 light pollution filters for astrophotography by filter type, size, camera…

AstroPhotographyHQ Team
October 26, 2026

General

APOD: 2026 October 25 – Dark Matter In A Simulated Universe

NASA’s October 25 Astronomy Picture of the Day features a simulation of dark matter…

AstroPhotographyHQ Team
October 25, 2026

Vetted

7 Best Equatorial Mounts for Astrophotography in 2027

Compare seven equatorial mounts for astrophotography, from compact camera trackers to…

AstroPhotographyHQ Team
October 25, 2026