The engine's answer
Best lens for one lens for a whole trip, under €500
Canon RF 50mm F1.8 STM
85% match
The nifty fifty, RF edition
Why it wins here
The Canon RF 50mm F1.8 STM takes this question at €220 — €280 under the €500 ceiling — with a 85% match against 65 current lenses. For one lens for a whole trip the engine leans on weight and close focus: it scores 160 g and 0.25 × mag., where the pool averages 633 g and 0.33 × mag.. At 160 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
- The classic first prime at the classic price
- Weighs nothing, goes everywhere
What to watch
- Buzzy, slow STM focus
- Build matches the price
What came close — and what each gave up
- Sigma 18-50mm F2.8 DC DN85%A constant f/2.8 that fits in a coat pocketThe Sigma 18-50mm F2.8 DC DN (85% match) costs €230 more (€450 against €220). Check price: B&H Photo Adorama MPB (used) eBay (used)
- Nikon Z 40mm f/283%The friendly little character primeThe Nikon Z 40mm f/2 (83% match) trails on close focus — 0.17 × mag. against 0.25 × mag.. Check price: B&H Photo Adorama MPB (used) eBay (used)
- Sony FE 50mm F1.882%The cheapest ticket to real bokehThe Sony FE 50mm F1.8 (82% match) trails on close focus — 0.14 × mag. against 0.25 × mag.. Check price: B&H Photo Adorama MPB (used) eBay (used)
Questions this answer raises
- Is the Canon RF 50mm F1.8 STM within a €500 budget?
- Yes. At €220 it leaves €280 of the ceiling unspent; the Sigma 18-50mm F2.8 DC DN costs €450 and the Nikon Z 40mm f/2 costs €280.
- How good is the Canon RF 50mm F1.8 STM for one lens for a whole trip?
- On the use question it scores 71%, 37 points above the average of the 65 lenses ranked. Its strongest numbers for this use are weight (160 g) and close focus (0.25 × mag.).
- What comes closest to the Canon RF 50mm F1.8 STM for one lens for a whole trip?
- The Sigma 18-50mm F2.8 DC DN at 85%, then the Nikon Z 40mm f/2 at 83%. 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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