Which Focal Length for What? The Beginner's Guide 2026

Q: Which focal length for portraits?

85 mm on full frame — or 50 mm on APS-C. Headshots: 85–105 mm. Not under 35 mm for faces up close.

Author

Martin Kleinheinz

Photographer · Hannover

Updated

June 21, 2026

You turn the zoom ring — 18 mm, 55 mm, something in between — and have no idea which setting fits which subject. Welcome to the club. Most beginners leave the lens on middle zoom and wonder why every image looks the same.

Focal length isn't magic. It describes how much your lens sees and how the subject appears in the frame. Short focal lengths (low mm) show a lot and distort at the edges. Long focal lengths (high mm) zoom in, isolate subjects and "compress" the background.

In this guide I explain focal lengths from scratch — with tables, example photos from my jobs and clear recommendations for your first lens. Related: Exposure Triangle, Take Better Photos and the Field of View Calculator.

00

Quick

Which focal length for which subject?

The fastest answer — as a cheat sheet to remember:

Focal length (full-frame eq.)	Name	Ideal for	Effect
14–24 mm	Ultra wide	Architecture, interiors, dramatic landscape	Lots in frame, edge distortion
24–35 mm	Wide angle	Travel, street, reportage, groups	Lots of context, dynamic
40–60 mm	Normal	Everyday, documentary, half-length portrait	Natural perspective
70–135 mm	Short tele	Portrait, detail, product	Flattering, nice bokeh, isolated
200 mm+	Telephoto	Sport, wildlife, concert, distant subjects	Strong zoom, compresses planes

Focal length overview for full frame — for APS-C see section 01

01

Basics

What does focal length in mm mean?

Focal length is given in millimetres (mm) — e.g. 50 mm. In simplified terms it describes the distance between lens and sensor: The smaller the number, the wider the angle of view. The larger the number, the stronger the zoom.

A 24 mm lens shows much more of the scene than a 200 mm lens — at the same distance to the subject. That's the framing. But focal length also changes perspective: wide angle stretches the foreground, telephoto compresses distances.

Crop factor — why your 50 mm looks different

Smaller sensor = narrower angle of view at the same focal length. A 50 mm lens on APS-C (Canon R10, Sony ZV-E10 II) looks roughly like 75–80 mm on full frame. On a smartphone the main camera is often ~24–28 mm full-frame equivalent.

Lens	Full frame	APS-C (×1.5)	APS-C Canon (×1.6)
16 mm	16 mm wide	~24 mm	~26 mm
24 mm	24 mm wide	~36 mm	~38 mm
35 mm	35 mm reportage	~52 mm	~56 mm
50 mm	50 mm normal	~75 mm	~80 mm
85 mm	85 mm portrait	~128 mm	~136 mm

Same lens focal length, different angle of view by sensor

02

Wide angle

Wide angle 14–35 mm — lots in the frame

Wide-angle lenses capture a lot — ideal when you want context: the whole church, the street with people, the landscape with foreground. They enlarge the foreground and make the background look smaller. That can be dramatic — or distorting if you get too close to faces.

Focal length	Subject	Tip
14–16 mm	Exterior architecture, night sky, interiors	Keep horizon level — distortion otherwise distracting
20–24 mm	Landscape with foreground, travel, hotel room	Leave some margin — strongest distortion at edges
28–35 mm	Street, reportage, environmental portrait	Classic reportage look — my entry into street

Wide angle by subject — full-frame equivalent values

Wide-angle shot of a terrace at Lake Como — lots of landscape in frame — Approx. 24–35 mm (full-frame eq.): landscape with foreground — wide angle shows space and depth.

Architecture interior with wide angle — real estate photography — Approx. 16–24 mm: interiors and architecture — wide angle makes tight rooms shootable.

Street photography in Milan with wide-angle focal length — Approx. 28–35 mm: street and reportage — enough context to tell the scene.

03

Normal

Normal focal length 40–60 mm — seeing naturally

The 50 mm focal length is considered the "normal lens" — it roughly matches human vision on full frame. Neither distortion nor strong compression. That's why a 50 mm prime (f/1.8) is the classic second purchase after the kit — cheap, fast, versatile.

Focal length	Subject	Character
40 mm	Documentary, half portraits, everyday	Slightly wider than normal — good in tight spaces
50 mm	Universal, still life, half-length portrait	"Honest" perspective — Henri Cartier-Bresson's favourite focal length
60 mm	Half-length portrait, product	First slight tele look, still everyday usable

Normal focal lengths — the underrated middle ground

Café scene with normal focal length — natural perspective — Approx. 50 mm: everyday scenes look natural — neither stretched nor compressed.

04

Portrait

Portrait focal lengths 70–135 mm — flattering isolation

Portraits live on depth of field and perspective. Short focal lengths distort faces. Long focal lengths compress features flatteringly and separate subject from background (bokeh). That's why pros shoot headshots mostly with 85 mm or 105 mm.

Focal length	Distance to subject	Use	Bokeh
70 mm	2–3 m	Half figures, small groups	Moderate
85 mm	2.5–4 m	Classic headshot, business portrait	Very nice — the standard
105 mm	3–5 m	Tighter headshots, beauty	Strongly isolated
135 mm	4–6 m	Editorial, outdoor portrait with distance	Very strongly compressed

Portrait focal lengths — full frame, open aperture (f/1.8–f/2.8)

Business portrait at approx. 85 mm focal length with soft bokeh — Approx. 85 mm, f/2.8: classic business portrait — face proportioned, background soft.

Editorial portrait at the lake with tele focal length — Approx. 85–105 mm: editorial portrait — subject isolated, visual flow through bokeh.

Employee photo with portrait focal length in office — Approx. 70–85 mm: employee and team photos — flattering perspective for groups and individual portraits.

On APS-C a 50 mm lens looks like ~75 mm — perfect for portraits. A native 85 mm on APS-C is very tele — better outdoors with distance. More on depth of field: Depth of Field Calculator.

05

Telephoto

Telephoto 200 mm+ — zoom in and isolate

Telephoto lenses bring distant subjects close — and compress depth: background appears optically closer to the subject, planes look stacked. Ideal for sport, concerts, wildlife and details you can't reach physically.

Focal length	Subject	Challenge
70–200 mm	Events, sport, wedding from distance	Heavy, needs fast shutter — see Exposure Triangle
100–400 mm	Wildlife, birds, sport in large hall	Tripod or very high ISO, expensive
400 mm+	Pro sport, safari	Specialty — after fundamentals

Telephoto focal lengths — when closeness isn't an option

Event photography with tele focal length — moment caught from distance — Approx. 70–135 mm: event and reportage — catch the decisive moment from the background.

Outdoor portrait with longer focal length and bokeh — Approx. 85–135 mm: outdoor portrait — tele separates subject from background even without extremely open aperture.

06

Kit

Understanding kit lenses

Your first system camera usually comes with a kit lens — a zoom covering a range. Typical names and what they mean:

Kit lens	Focal length range	Covers	Weakness
18–55 mm (APS-C)	Wide to short tele	Family, holiday, everyday	Not very fast (f/3.5–5.6), moderate bokeh
16–50 mm (APS-C)	Similar, slightly wider	Travel, street	Same speed issues
24–70 mm (full frame)	Wide to portrait	Pro standard, reportage	Heavier, pricier — but versatile
24–105 mm	Maximum flexibility	Travel without lens changes	Compromise on speed and sharpness
70–200 mm	Tele zoom	Event, sport, outdoor portrait	Large, heavy — upgrade not kit

Typical zoom lenses and their uses

The numbers on the zoom ring are your compass: 18 mm for the whole scene, 55 mm for half-length, in between for everything. The kit lasts months — before you buy specialised lenses you should know which focal length you actually use. Tip: check in Lightroom metadata which mm appears most often.

07

Smartphone

Smartphone focal lengths compared

Smartphone lens	Typically equivalent to	Use
Ultra wide (~13 mm)	~16–20 mm full frame	Groups, architecture, interiors
Main camera (~24 mm)	~24–28 mm full frame	Everyday, landscape, most photos
Tele (~77 mm)	~70–85 mm full frame	Portrait mode, some distance to subject
Periscope tele (~120 mm+)	~100–135 mm	Zoom without quality loss — premium phones

Smartphone lenses translated into camera language

Portrait mode simulates 85 mm bokeh in software — often works well but isn't the same as a real 85 mm f/1.8 lens. A camera pays off when you want to choose focal lengths consciously. Entry: Camera for Beginners.

08

Buying

Which first extra lens?

The kit is enough. Really. Only when you notice what's missing do you buy with purpose. Here are the most common next steps:

You mainly shoot …	First upgrade	Typical focal length	Price guide
Portraits, people	50 mm f/1.8 or 85 mm f/1.8	50 or 85 mm	€150–600
Kids indoors, low light	35 mm f/1.8 or 50 mm f/1.8	35–50 mm	€150–400
Travel, landscape	Kit is enough — or 16–35 mm zoom	16–35 mm	€400–1,500
Sport, events	70–200 mm f/2.8 or f/4	70–200 mm	€800–2,500
Everything, one lens	24–70 mm f/2.8 (full frame) / f/2.8 APS-C zoom	24–70 mm	€600–2,000

First lens by subject — after the kit lens

09

Training

3 exercises for beginners

Exercise 1: Same subject, three focal lengths: Stand before a subject (statue, tree, person with consent). Shoot at 24 mm, 50 mm and 85 mm (zoom or three positions). Compare perspective and background.
Exercise 2: Focal length diary: One week: note the mm value for every photo. Sunday: which focal length do you use most? That shows your next lens.
Exercise 3: Prime challenge: One day with only 35 mm or only 50 mm — physically fix the zoom or use a prime. You'll get more creative with position and composition (Golden Ratio).

10

FAQ

Frequently asked questions

Which focal length for portraits?

85 mm on full frame — or 50 mm on APS-C (similar look). Headshots: 85–105 mm. Half figures: 50–70 mm. Not under 35 mm for faces up close.

Which focal length for landscape?

24–35 mm for classic landscape with foreground. 16–24 mm for dramatic wide angle. Single mountains or details: 70–200 mm from farther away.

What's better — zoom or prime?

Zoom = flexible, ideal for learning and travel. Prime = often faster, sharper, cheaper — and forces more conscious composition. First purchase after kit: 50 mm f/1.8.

Is the 18–55 mm kit lens enough?

Yes, for months. It covers wide angle to short tele — enough for family, holiday and learning. Only buy when you feel a concrete gap (e.g. not enough light, not enough bokeh).

How do I find the focal length on my camera?

In EXIF data after shooting (display → info), in Lightroom under metadata or with our EXIF Viewer. When zooming the viewfinder or display often shows the current mm value.

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Keep reading

From the journal.

Photography Technique

Exposure Triangle

Aperture, shutter speed and ISO — the other foundation beside focal length.