The engine's answer

Best lens for portraits, under €500

OM System M.Zuiko 45mm f/1.8

80% match

The hundred-gram portrait lens

Why it wins here

The OM System M.Zuiko 45mm f/1.8 takes this question at €280 — €220 under the €500 ceiling — with a 80% match against 65 current lenses. For portraits the engine leans on bokeh and max aperture: it scores 72/100 and f/1.8, where the pool averages 71/100 and f/3. At 116 g it is lighter than the average lens here (633 g). No prime-or-zoom preference was required, so the whole pool of 65 was in play.

The dimensions where it beats the rest of the field by the most, for this question specifically.

  • Budget
  • Use

What's good

  • Portrait compression that weighs nothing
  • A classic first prime for the system

What to watch

  • No sealing
  • Simple build, simple bokeh

What came close — and what each gave up

Questions this answer raises

Is the OM System M.Zuiko 45mm f/1.8 within a €500 budget?
Yes. At €280 it leaves €220 of the ceiling unspent; the Sony FE 50mm F1.8 costs €250 and the OM System M.Zuiko 60mm f/2.8 Macro costs €500.
How good is the OM System M.Zuiko 45mm f/1.8 for portraits?
On the use question it scores 61%, 11 points above the average of the 65 lenses ranked. Its strongest numbers for this use are bokeh (72/100) and max aperture (f/1.8).
What comes closest to the OM System M.Zuiko 45mm f/1.8 for portraits?
The Sony FE 50mm F1.8 at 76%, then the OM System M.Zuiko 60mm f/2.8 Macro at 75%. The section above names the measure each one lost on.

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This page answers one photographer's question. Yours is not that question — adjust the subject, the format or the budget and watch the whole field re-rank.

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