Interior photography, measured: light, verticals, styling and focal length

Living room photographed in daylight with a sash window on the left, a grey sofa against the back wall and a low oak table on bare boards — Clifton flat, first frame of the day, 24mm at f/11

Barbara Brown photographs interiors from Bristol for architects, furniture makers and three letting agencies covering roughly 40 properties a year. This journal records the part of the job that happens before the shutter opens: metering a room at ISO 100, setting the sensor between 45 and 55 per cent of ceiling height, squaring verticals to 0.2 degrees, and clearing 35 to 45 objects out of a living room.

What each note settles
Note	Question answered	Working figure
Overcast light	What does an interior meter at under cloud?	EV 5 to EV 8 at ISO 100
Correcting verticals	How high should the sensor sit?	45 to 55 per cent of ceiling height
Styling a room	How long does a living room take?	50 minutes before the first frame
Focal length	How far back does the tripod go?	2.67m at 24mm, 3.89m at 35mm

Oak chair back with a folded linen throw over the seat, photographed at 35mm from 1.8 metres — 35mm, f/8, 1/8 second, ISO 100

Choosing a focal length for interiors

2 April 2026 / Lenses / 9 min read

A 24mm lens covers 73.7 degrees horizontally and needs 2.67m to frame a 4.0m wall, while a 35mm lens covers 54.4 degrees and needs 3.89m. The 1.22m difference in tripod position renders foreground furniture 40 per cent larger against the back wall, which is what makes a room read as cavernous or honest.

Dining table dressed with a linen runner, a ceramic bowl of pears, a stack of books and a single candlestick — 50mm, f/9, 1/4 second, ISO 100

Styling a room before the shoot

12 March 2026 / Preparation / 8 min read

A lived in living room carries 35 to 45 loose objects and takes 50 minutes to strip, clean and style before the first frame. Placement takes a third of the time removal takes, and a styled surface ends with three objects at heights of 8cm, 22cm and 34cm rather than four.

Corner of a hallway with a console table and a leaning mirror, all vertical lines running parallel to the frame edge — 24mm shifted 6mm up, f/11, 1.6 seconds, ISO 100

Correcting verticals

21 February 2026 / Technique / 8 min read

Pitching a camera 4 degrees off level narrows the top of a 2.6m wall by 4.4 per cent, and correcting that pitch in software takes a 24.0 megapixel file down to 19.5 megapixels. Levelling the tripod to within 0.2 degrees costs 30 seconds and removes the correction entirely.

Three pane sash window under a white overcast sky, throwing even light across a plaster wall — 24mm, f/11, 0.8 seconds, ISO 100, 6800K

Shooting interiors in overcast light

4 February 2026 / Light / 9 min read

Flat cloud narrows an interior from a 5 stop range to a 2 stop range, measured wall to sill. A Bristol room under settled grey meters EV 5 to EV 8 at ISO 100, which is 4 seconds to 1/2 second at f/11, and three frames at 2 EV spacing cover nine rooms in ten.

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