Snowflake

Common Exposure Time Mistakes and How to Fix Them

Learn the top exposure time mistakes astrophotographers make and how to correct them for sharper, richer images.
Quick read

Article

Many beginners struggle with exposure time settings. Here are common mistakes to watch out for:

  • Overexposing bright objects: Long exposures can blow out stars or the Moon, losing detail. Use your histogram to avoid clipping highlights.
  • Ignoring the 500 Rule: Not adjusting exposure time for lens focal length causes star trails.
  • Not adjusting ISO and aperture: Exposure time works with these; neglecting them leads to poor balance.
  • Fixed exposure despite changing conditions: Light pollution or moon phase changes require tweaking exposure time.
  • Assuming tracking means unlimited exposure: Tracking errors can still blur images; align and calibrate your mount carefully.

By avoiding these mistakes, you'll capture sharper stars and richer details with less frustration.

Go deeper

Complete Guide

Move from the quick read into the full authority page.