Depth of Field for Real Estate Photography
Real estate is the opposite of portraits: you want everything sharp from the countertop to the back window. Good news — it's a solved math problem, and the answer is usually f/8.
The f/8 rule, with math
A 16 mm lens on full frame at f/8 has a hyperfocal distance of about 1.1 m — focus at 1.1 m and everything from 0.55 m to infinity is sharp. That covers an entire room. On APS-C, a 10–12 mm lens at f/8 is similar (~0.7–0.9 m hyperfocal). Get exact values in the hyperfocal calculator or the chart.
| Focal length (FF) | Hyperfocal @ f/8 | Sharp from |
|---|---|---|
| 14 mm | 0.86 m | 0.43 m → ∞ |
| 16 mm | 1.13 m | 0.56 m → ∞ |
| 20 mm | 1.75 m | 0.88 m → ∞ |
| 24 mm | 2.52 m | 1.26 m → ∞ |
That's why f/8 is the real-estate default: f/5.6 risks a soft near edge, and f/11–f/16 buys almost nothing (the near limit barely moves) while adding diffraction. f/8 is the diffraction-free sweet spot with more than enough DoF.
Where to focus
The classic method: focus ⅓ into the room (not the back wall, not the floor). At hyperfocal it doesn't matter — focus at H and everything from H/2 to infinity is sharp. Practical workflow:
- Compose the room, set f/8, focus on a point about ⅓ of the way into the frame (a chair arm, the middle of a counter).
- If your lens has no distance scale (most mirrorless), focus-peak on something at the ⅓ point or use the hyperfocal number with the focus ring's readout.
- For large rooms or angled shots where the nearest element is closer than H/2, focus on the nearest element and stop to f/11 if needed — or take two focus-bracketed shots.
Technique details that matter
- Tripod, always. At f/8 and ISO 100 you'll be at 1/4–1 s indoors — no handheld margin. Level the camera (bubble or electronic level) so verticals stay straight.
- HDR/Exposure blending: windows blow out at any single exposure. Shoot 3–5 brackets (±2 EV) and blend — the DoF math is identical for every frame, so brackets stack cleanly.
- Vertical framing for tight spaces (bathrooms): tilt shift? No — keep the camera level and stitch two vertical frames later. Tilting the camera up ruins verticals even if DoF still covers the room.
- Flash or ambient? HDR ambient is the norm; flash adds punch but complicates DoF (flash falloff needs higher ISO or more power, not aperture changes).
Related tools & guides
Hyperfocal Calculator
Your exact focus point for any lens + camera.
Open →Field of View Calculator
Pick the lens that fits the room you're shooting.
Open →Hyperfocal Chart
Pre-computed values, printable.
Read →Real estate DoF FAQ
Why does my real estate shot look sharp in the middle but soft at the edges?
Lens field curvature or corner softness, not DoF — wide lenses are softest at the edges wide open. Stop to f/8–f/11 (where the lens is sharpest) and check if the corners recover; if not, it's lens quality, and no aperture change fixes it.
Should I shoot f/11 to be safe?
Only if the nearest element is inside H/2. On full frame with a 16 mm lens that means closer than ~0.55 m — rare in a composed room shot. f/11's diffraction starts to soften overall detail for zero practical DoF gain. Use f/8 and a correct focus point.
Does a tilt-shift lens change the DoF math?
Yes — tilt changes the plane of focus, so a tilted lens can have a "wedge" of sharpness covering a floor-to-ceiling scene at f/5.6 where a regular lens would need f/8+. The hyperfocal numbers here apply to regular (non-tilted) lenses.