Direct Answer
Every meteor photography tutorial gives you baseline settings: f/2.8, ISO 3200, 20 seconds, wide angle. Those are starting points, not universal answers.
The skill that actually matters is knowing when and how to deviate from those baselines based on what your sky is actually delivering.
The baseline to start from
A useful baseline for most APS-C and full-frame cameras under a genuinely dark sky is: wide-angle lens at f/2.8 or faster, ISO 1600-6400 depending on your sensor, 15-25 second exposures, manual focus set to infinity with微调.
This baseline is optimized for catching faint meteors in a dark environment. It will overexpose your sky and wash out meteors under brighter conditions.
- f/2.8 or faster wide-angle lens
- ISO 1600-6400 based on sensor performance
- 15-25 second exposures
- Manual focus to optical infinity, then微调
How moonlight changes everything
Moonlight floods the sky and reduces contrast. Under moonlight, you need shorter exposures to keep the sky dark enough for meteors to register. This means you also lose the faint ones that longer exposures would have captured.
A practical response: reduce exposure to 8-15 seconds, increase ISO to compensate, and consider a slightly narrower aperture if you have one.
- Reduce exposure time to 8-15 seconds under moonlight
- Increase ISO to compensate for shorter exposure
- Moon position matters as much as phase: moon near radiant is worse
- Consider skipping faint meteor capture and focus on bright ones
Adjusting for urban and suburban skies
Urban and suburban skies brighten the background the same way moonlight does, just less dramatically. Your baseline settings will need adjustment depending on the severity.
In heavily light-polluted areas, shorter exposures and higher ISO can paradoxically give you better meteor detection than longer exposures that let the sky glow dominate.
- Suburban: reduce exposure to 15-20 seconds, slight ISO increase
- Urban: reduce to 8-15 seconds, significant ISO increase
- Watch for glow gradient across your frame
- Prioritize capturing bright meteors over faint ones
How to read the sky and adjust in the field
Before committing to settings, take a test shot and look at the histogram. In a dark sky with no moon, you want a well-exposed but not blown-out frame. Under moonlight or light pollution, you are looking for usable contrast.
The meteor photography test is always: do bright meteors show nicely without the sky turning gray, and do fainter ones still register?
Common settings mistakes
The most common mistake is copying baseline settings without understanding why they work in a dark sky. Those same settings will fail under any bright sky condition.
Another mistake is leaving settings unchanged across different nights. Your adjustment workflow should be as routine as choosing a date and location.
Using MeteorGazer to plan your settings
Use the prediction page to understand sky darkness before the session. This gives you a head start on whether you are walking into a dark-sky, suburban, or moonlit situation.
The meteor shower profile page tells you the typical brightness distribution of each shower, which helps you decide how aggressively to optimize for bright versus faint meteors.