Shooting in the dark is a technical discipline, not just an aesthetic one.
Most photographers understand daylight exposure intuitively. Night is different. The variables stack - sensor noise, light pollution, lens aberrations at wide apertures, and the Earth's own rotation conspiring against a sharp star field.
This quiz covers the practical side: exposure math, equipment choices, and the kind of situational decisions that separate a usable frame from a blurry one. Eight questions, no tricks.
Exposure & Aperture
Settings decisions under low-light conditions, from ISO selection to shutter speed limits.
Beginner to Advanced
Questions escalate from foundational concepts to edge cases that experienced shooters sometimes get wrong.
Short and Focused
No filler. Each question addresses a decision you will actually face in the field.
The Quiz
Select one answer per question. Review your choices before checking the scoring guide below.
The 500 Rule estimates the maximum shutter speed before stars begin to trail. For a full-frame camera with a 24mm lens, what is that limit?
You are shooting the Milky Way core. Which aperture setting generally produces the best balance between light gathering and optical sharpness?
Light pollution from a nearby town is washing out the lower third of your frame. What is the most practical adjustment?
At ISO 6400 and 20 seconds, your histogram shows most data pushed right but not clipping. What does this indicate?
Which phase of the moon creates the most difficult conditions for Milky Way photography?
You focus on a bright star using live view at maximum magnification, then close the aperture for the shot. What problem might occur?
Star trail photography using stacking software requires a sequence of images. What gap between frames causes visible breaks in the trails?
A photographer uses an intervalometer set to 25 seconds exposure with a 1-second delay. After 90 minutes they have roughly how many frames?
Answer Key
Check your selections against the answers below. Each correct answer is worth one point.
- Q1 - B: 500 ÷ 24 = ~20.8 seconds. Round to 21.
- Q2 - B: One stop down from maximum reduces coma and vignetting while keeping most light.
- Q3 - C: A narrowband filter attenuates the specific wavelengths of sodium and mercury street lighting.
- Q4 - B: Expose to the right (ETTR) is standard practice - shadow data is preserved, noise is minimised.
- Q5 - C: A full moon raises ambient light levels enough to render faint nebulosity invisible.
- Q6 - B: Focus shift is a known optical characteristic of certain lens designs, particularly fast primes.
- Q7 - B: Gaps of 2–4 seconds produce visible dashes in the final composite at typical trail lengths.
- Q8 - C: 90 minutes = 5400 seconds. Each cycle is 26 seconds. 5400 ÷ 26 ≈ 207, but accounting for write time the realistic count is around 162.
Scoring is straightforward - count your correct answers and find your tier in the table to the right. No partial credit.
Score guide
questions total