Focusing on subjects
Sharp focus makes your subject stand out. This guide covers manual focus techniques for SLRs, TLRs, and rangefinders, plus zone focusing for quick shots.
Focus types in film cameras
| Type | Control | Best for |
|---|---|---|
| Manual focus | You set it | Full creative control |
| Autofocus | Camera sets it | Speed, later cameras |
| Fixed focus | No adjustment | Disposable cameras, convenience |
Manual focus is easier than it sounds—most cameras have built-in aids to help you.
Fixed-focus lenses keep everything sharp beyond a certain distance but sacrifice image quality.
Manual focus SLRs
Turn the focus ring on the lens to move the lens elements and bring your subject into focus.
Your viewfinder has a focusing screen with aids:
- Split-image – A circle that splits the image in two. Align the halves to focus.
- Microprism – Textured ring that looks jagged when out of focus, sharp when correct.
- Matte screen – Fine texture that works well in low light.
These make manual focusing much easier than it sounds.
Manual focus TLRs
TLR cameras (like Rolleiflex or Yashica) use a side-mounted dial to move the lens assembly.
Instead of a prism, you view through a waist-level screen. This larger screen makes focusing easier, especially from lower angles. Some models include a flip-out magnifying glass for precise work.
Manual focus rangefinders
Rangefinders (like Leica M series) use a coincidence system—you see a secondary image overlay in the viewfinder.
Turn the focus ring until the two images align. The system works best with subjects that have clear edges or contrast.
Autofocus SLRs
Later autofocus SLRs (like Canon EOS) use electronic sensors and motor-driven lenses.
| Mode | How it works |
|---|---|
| Single-shot (AF-S) | Focuses once when you half-press, stays locked |
| Continuous (AF-C) | Keeps adjusting while half-pressed, tracks moving subjects |
| Manual override | Switch to manual after autofocus locks |
Half-press the shutter to activate focus—usually confirmed by a light or beep.
If autofocus picks the wrong spot, try recomposing or using manual override if your camera has it.
Zone focusing
Zone focusing uses depth of field instead of precise adjustment. Most lenses have distance markings and depth of field indicators on the barrel.
To use zone focusing:
- Set a smaller aperture (f/8 or f/11) for a wider in-focus range
- Adjust the focus ring so your subject distance falls within that range
- Shoot without refocusing
This works well for street photography—you can capture candid moments quickly without lifting the camera to your eye.