Camera Grid 
- Perspective & height
- FREE
One-Point Perspective: centre the vanishing point
Corridors, roads, platforms. Put the vanishing point in the middle and stand square to it.
What it is
In one-point perspective, parallel lines such as walls, rails and road edges appear to meet at a single vanishing point. Putting that point in the middle of the frame and standing square to the scene makes both sides converge evenly, which pulls the eye straight into the depth. The result feels orderly and strong, and a small figure at the vanishing point gains a lot of weight. It needs a real line of sight: a corridor, a platform, a straight road or an avenue of trees.
When to use it
- Train platforms and long corridors
- A straight road or an avenue of trees stretching away
- Tunnels, bridges and colonnades seen head on
How to shoot it
- Stand in the middle of the corridor or road, facing straight down it, with the phone at eye level. A 1× to 1.5× zoom keeps the lines strong.
- Camera Grid offers this guide only when it reads a clear corridor: several long lines meeting at one point inside the frame. It draws those lines to their vanishing point.
- Pan or tilt until the vanishing point sits in the centre. The coach tells you which way, one move at a time.
- Keep the phone level, neither pointing up nor down, and shoot when the ring turns green with a tap.
Common mistakes
- Standing off to one side, so one wall dominates and the lines converge unevenly.
- Tilting the phone up or down, which moves the vanishing point off centre.
- Choosing a short or cluttered corridor where the lines do not reach far enough to lead anywhere.
Questions
What is one-point perspective in photography?
It is a view where parallel lines run away from you and seem to meet at one vanishing point, usually straight ahead. Corridors, roads and railway tracks show it clearly. Centring that point and standing square to the scene gives a strong sense of depth and symmetry.
Why doesn't Camera Grid suggest One-Point for every road?
It only calls a scene a corridor when the evidence is strong: enough long lines meeting at one point well inside the frame. A faint or cluttered scene gets another guide. You can still hold One-Point from the guide strip, and it scores the scene whenever it can find a vanishing point.
Frame it. Lock it.
One-Point Perspective is one of the 16 free guides in Camera Grid. Point your iPhone at the scene and the app draws it for you.
