Chapter 21 — Exercises

Night photography is learned in the dark with a tripod, so most of these send you out after sunset to make long exposures. A phone with a steady brace and Night mode will do the seeing exercises and many of the shooting ones; a camera with a tripod and a 30-second-plus shutter unlocks all of them. Difficulty is marked ⭐ (warm-up), ⭐⭐ (core), ⭐⭐⭐ (stretch). Do the starred and odd-numbered ones at minimum; model answers and critiques for those live in the book's Answers to Selected Exercises. Safety first: never shoot alone in an unsafe place, never set up on a live roadway, mind your footing in the dark, and tell someone where you'll be. Keep everything you shoot — one frame is headed for your Portfolio.

Part A — Read the Frame (seeing the long exposure)

Before you can shoot a long exposure on purpose, you have to be able to see one — to look at a finished night image and read backward to what moved, what stayed still, and how long the shutter was open. These no-camera exercises train that reading. They pay off the moment you're standing in the dark deciding what duration to dial.

Exercise 21.1 ⭐ — Name the motion. Find five long-exposure or night images (search "light trails," "star trails," "long exposure waterfall," "blue hour city," "light painting"). For each, write one sentence naming what moved during the exposure and what stayed still — the separation that makes the image work. Fluency, not depth.

Exercise 21.2 ⭐⭐ — Read a trail frame. Write a full Described Photograph (the six fields: THE FRAME / THE LIGHT / THE MOMENT / THE CHOICES / THE EFFECT / THE LESSON) of a car-light-trail image you admire. In THE CHOICES, estimate the shutter duration from the length and smoothness of the trails and justify your guess.

Exercise 21.3 ⭐⭐ — Points or trails? Find one sharp-star (point) night-sky image and one star-trail image. For each, state whether the photographer was fighting or celebrating the Earth's rotation, and what shutter strategy that implied (short, under the 500 rule, vs. very long / stacked).

Exercise 21.4 ⭐⭐⭐ — Diagnose the over-cooked water. Find (or recall) a smoothed-water image where the water has been softened so much it reads as featureless fog and you can barely tell it's water. Diagnose what went wrong and prescribe the specific re-shoot — including roughly what shorter shutter might restore a hint of form.

Part B — The tripod and the long exposure (Shoot This)

The whole chapter rests on one piece of gear and one habit: a camera held perfectly still, fired without being touched. These exercises build the muscle memory of the tripod, the timer, and the stabilization switch until they're automatic — so that on a cold night you don't lose a frame to a wobble you could have prevented.

Exercise 21.5 ⭐ — Prove the tripod. Photograph the same dim scene twice at a 2-second shutter: once hand-held (brace as best you can), once on a tripod (or a wall/beanbag) with a 2-second timer. Compare at 100%. The hand-held frame's smear is the entire argument for the tripod, made by your own hands.

Exercise 21.6 ⭐⭐ — The stabilization test. On a tripod, shoot the same scene at a few seconds with image stabilization on, then off. Compare carefully. Whether or not you can see the difference, this fixes the habit: stabilization off on a tripod, always.

Exercise 21.7 ⭐⭐ — Smooth the water. At a fountain, stream, sink tap, or shower, make a series at ¼ s, ½ s, 1 s, 2 s, and (if you can get it dark enough or use an ND filter) 8 s. Same frame. Lay them in order. Choose the shutter that best balances silk against still-reads-as-water and write why. Keep the series.

Exercise 21.8 ⭐⭐⭐ — Bulb-mode marathon. Using bulb mode and a remote (or your camera's bulb timer), make one exposure longer than 30 seconds — a 60–120 s frame of a dark scene, or a light-painted subject. Note the start/stop times. Inspect the dark areas at 100% for hot-pixel noise, then re-shoot the same length with long-exposure noise reduction on and compare.

Part C — Exposure and the histogram in the dark (Settings Drill)

At night your meter guesses badly and your rear screen lies — it glows so brightly in the dark that a too-dark frame looks fine. Your real instruments are a test shot and the histogram. These drills make reading the graph and focusing in the dark second nature, so you stop trusting the wrong tools.

Exercise 21.9 ⭐ — Read the night histogram. Make any night frame and study its histogram. Write down: is it left-heavy (it should be)? Is anything clipped against the right wall (which lights)? Do the midtones you care about have data, or are they crushed to pure black? Adjust and re-shoot once based on what you read.

Exercise 21.10 ⭐⭐ — Five exposures, one street. On a lit street at night, hold aperture and ISO fixed and shoot the same frame at five shutter speeds spanning four stops (e.g. 1 s, 2 s, 4 s, 8 s, 15 s). For each, write what the histogram did and which tones won or lost. Pick the best and defend it.

Exercise 21.11 ⭐⭐ — Focus in the dark, three ways. Practice all three night-focus methods on one scene: (a) manual focus on a bright distant light using magnified live view; (b) autofocus on a bright light, then flip to manual; (c) hyperfocal distance set on the barrel. Confirm sharpness at 100% for each. Which was fastest and most reliable for you?

Exercise 21.12 ⭐⭐⭐ — Write the night recipe. Given this scenario — a lit cathedral facade at full night, you want the stonework detailed and the floodlights not blown, foreground-to-tower sharp — write the full settings (mode, aperture, shutter range, ISO, focus method, white balance, drive, file) and one sentence on each trade-off. Then go shoot something like it and see how close your recipe was.

Part D — Light trails and the city (Shoot This)

This is the fun part — turning a dark road into a river of light. It's also where the most common night disappointment lives: a perfect, sharp photograph of a road with no trails on it because you fired on an empty lane. These send you to a city block to practice timing the shutter to the traffic.

Exercise 21.13 ⭐⭐ — Paint with traffic. At a city block at night with steady traffic and a safe, stable vantage above or beside the road, make at least fifteen frames across 5, 10, 20, and 30 s and varying traffic density. Compose the road as a leading line. Self-review: which shutter-and-traffic combination gave the longest, smoothest trails without clipping? Keep your best three.

Exercise 21.14 ⭐⭐ — The leading-line road. From your traffic shoot, choose the frame where the trails most strongly lead the eye to a destination (a lit building, the horizon). If none do, re-shoot from a vantage where the road curves or rises into something worth arriving at. This connects §21.3 to the composition of §6.3.

Exercise 21.15 ⭐⭐⭐ — One subject, two methods of placed light. Find your "red door" (any textured subject). Light it at night twice: once with a single off-camera flash burst (the Chapter 11 method, if you have flash), once by light-painting it over a 30 s exposure. Compare what each method does to the texture and mood. (No flash? Compare two painting approaches — one hard direct pass, one soft raking sweep.)

Part E — The night sky (Shoot This / Recreate It)

The sky is moving, and you get to choose whether to fight that motion (sharp point-stars, under the 500 rule) or celebrate it (star trails). Astrophotography needs a dark site you drive to — that's most of the result — so plan honestly and don't expect miracles from a city balcony. Even a modest first attempt teaches the whole workflow.

Exercise 21.16 ⭐⭐ — Apply the 500 rule. For each of three focal lengths you own (e.g. 16mm, 24mm, 50mm — in 35mm-equivalent), compute the longest point-star shutter from the 500 rule and write it down. Then, from a dark-ish site, shoot the sky at your widest lens at that computed time and check whether the stars are points or short streaks at 100%.

Exercise 21.17 ⭐⭐⭐ — Milky Way landscape (or the darkest sky you can reach). From the darkest site you can get to on a moonless, clear night, make a starfield-over-landscape frame: widest fast lens, aperture wide open, ISO ~3200, shutter by the 500 rule, manual focus on a bright star, and an interesting foreground (light-paint it if needed). Even a modest result teaches the whole workflow. Note your light-pollution conditions honestly.

Exercise 21.18 ⭐⭐⭐ — Plan a star trail. You don't have to shoot the whole thing tonight, but plan it: find the celestial pole for your hemisphere, choose a composition that puts it over a foreground, and work out how many 30 s frames you'd need for ~1 hour of trails (and the storage/battery that implies). If you can, shoot a 20-frame mini-sequence and stack it to see arcs begin.

Part F — Light painting (Recreate It)

In a dark scene there is no light to find — so you build it, by hand, sweeping a flashlight over the subject during a long exposure. It's the most playful technique in the chapter and one of the most adaptable: the shutter does the standing still, so you can work slowly, seated, in short bursts. Start silly (your name in the air), then get serious (modeling a face).

Exercise 21.19 ⭐ — Write your name in light. In a dark room or yard, on a tripod with a 15–30 s shutter, point a small light at the camera and "draw" a word or shape in the air. It'll be backwards in the frame — that's part of the fun. Pure play; it teaches you how the open shutter accumulates a moving light.

Exercise 21.20 ⭐⭐ — Paint the subject, not the air. Now turn the light onto a subject (a bottle, a bike, a face holding still, the red door) and sweep it to selectively illuminate parts of it over a 30 s exposure. Dwell longer where you want it brighter; keep the beam moving; stay out of the beam. This is hand-built studio light — make three versions lighting different areas.

Exercise 21.21 ⭐⭐⭐ — Model a face by hand. Light-paint a still, willing portrait subject over a long exposure so the face is modeled like a one-light studio portrait — bright on one side, falling to shadow on the other (recall the side-light idea from §5.2 and the portrait patterns previewed for Chapter 12). The challenge is restraint and smoothness: no hot-spots, no visible "you."

Part G — Blue hour and timing (Eye Training & Shoot This)

Blue hour is the night photographer's prime time and the easiest "wow" image in the chapter — but it lasts twenty minutes and rewards being set up early far more than being skilled. These exercises train the one thing that matters most here: predicting the window and working the whole fade rather than firing once and leaving.

Exercise 21.22 ⭐ — Add the night prompt to your Light Log. This chapter's Light Log entry: for several evenings, note when blue hour actually happens where you live (use a planning app or just watch) and what the sky colour does minute by minute after sunset. No camera needed — you're learning to predict the window.

Exercise 21.23 ⭐⭐ — Work the whole fade. Set up a tripod on a city view (skyline, bridge, lit street) before sunset and shoot the same composition every two minutes until full dark — 10–15 frames. Lay them in time order. Identify the single frame where sky detail and light-glow best balanced. It's almost never the first or last. Keep it.

Exercise 21.24 ⭐⭐ — Warm vs. cool white balance at blue hour. From your fade sequence (or a new blue-hour frame), produce two white-balance versions of one frame: one cool (deepening the cobalt) and one warm (pushing golden). Decide which serves the image and write one sentence on why. (RAW makes this trivial; Chapter 26 develops it.)

Part H — Interleaved (mixing prior chapters)

Night work isn't a separate skill bolted on at the end — it's everything from Parts I and II applied in the dark. These exercises deliberately braid in the exposure triangle (Ch.3), composition (Ch.6), colour (Ch.7), and the decisive moment (Ch.10), so the chapter knits into the book rather than floating free.

Exercise 21.25 ⭐⭐ — Exposure triangle, after dark. Take one night frame and write the three other exposure settings that would give the same brightness (recall §3.5): if you started at f/8, ISO 200, 8 s, give an equivalent at f/11, at ISO 800, and at f/5.6. For each, state the side effect (depth of field, noise, or trail length) that changed.

Exercise 21.26 ⭐⭐ — Compose the dark. Apply Chapter 6 deliberately to a night frame: build one image on the rule of thirds with a clear leading line made of light (a road of trails, a row of streetlights, a reflection). Mark on a printout where the power points and the eye-path fall.

Exercise 21.27 ⭐⭐⭐ — The colour of night. Using Chapter 7's colour theory, find or make a night image built on a single strong colour relationship — the classic warm-lights-against-blue-sky complementary contrast, or a monochromatic sodium-orange street. Name the harmony and explain how the long exposure helped you control the palette (e.g. by smoothing distracting motion).

Exercise 21.28 ⭐⭐⭐ — The decisive duration. Chapter 10 taught the decisive moment; night work has a decisive duration and a decisive release time. For your best traffic-trail frame, explain how anticipation (§10.2) mattered — how you timed the shutter release to the flow of cars — even though the "moment" was 20 seconds long, not an instant.

Part I — Reflection and Portfolio

A chapter's worth of night frames is only worth as much as the one you choose to keep and the reasons you can give for it. These close the loop: select, label, reflect, and connect your night keeper to the body of work you're building. Choosing well — and being able to say why — is the skill that turns lucky shots into a practice.

Exercise 21.29 ⭐⭐ — Choose the keeper. From everything you shot this chapter, choose the single best frame for your Portfolio (trails, stars, water, blue hour, or painting). Add it to the folder, label it 21-night, and write the one-line note: what it is, what moved, what you'd do differently. Set it beside your Chapter 5 golden-hour keeper and note what the pair says about your range.

Exercise 21.30 ⭐⭐⭐ — Teach the separation. Explain to someone (a friend, a journal, a phone pointed at yourself) the chapter's core idea — that a tripod separates the still world from the moving world, and that a long exposure records everything that happened rather than one instant — using one of your own long exposures as evidence. Teaching forces clarity.

Stretch challenge

Exercise 21.31 ⭐⭐⭐ — A night, start to finish. In one outing: arrive before sunset and scout, shoot the blue-hour fade, capture traffic trails as it goes dark, then (if you can reach a dark sky) a starfield, and finish with a light-painted subject. Bring it home and choose the three strongest frames. You will have used every technique in the chapter in a single night — the proof that night photography is one connected craft, not a list of tricks.

Model answers and critiques for the starred and odd-numbered exercises appear in the book's "Answers to Selected Exercises." Try each in the dark, with a tripod, before reading them — in night photography, the test shot is the lesson.