Verdict
All guidesResearchMethodologyAboutContact
Head-to-head · Best Portrait Lenses Under $500

Canon EF 50mm f/1.8 STM vs Canon EF 85mm f/1.8 USM

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.
The short answer

Canon EF 85mm f/1.8 USM comes out ahead by a narrow margin (4.3 vs 4.6). The gap is mostly about portrait enthusiasts seeking affordable telephoto reach — read the strengths below before deciding.

Canon EF 50mm f/1.8 STM
Ranked #4 in Best Portrait Lenses Under $500
Canon EF 50mm f/1.8 STM
4 sources1 derived$203.95as of Aug 2

The 'Nifty Fifty' reputation is earned: the Canon EF 50mm f/1.8 STM puts excellent optics in a compact, affordable package. Photography Blog praised its sharpness and minimal chromatic aberration, and KenRockwell.com highlighted the value and compatibility across all Canon EOS cameras. The STM motor focuses quietly and smoothly, which suits video work, though the lack of hard infinity stops can complicate manual focusing. Beginners and enthusiasts after an entry-level fast prime are the fit; anyone who wants premium build quality should look elsewhere.

Strengths
  • — Bright f/1.8 aperture allows for shallow depth of field and better low-light performance
  • — Quiet STM stepping motor enables smooth and silent autofocus during video recording
  • — Compact and lightweight design at only 159g with metal mount for improved durability
Watch-outs
  • — No hard stops at infinity focus, making manual focusing challenging
  • — Light fall-off at f/1.8 in corners, though distortion is well-controlled
  • — All-plastic construction feels less premium despite metal mount addition
$203.95 · Check Price on AmazonFull review →
Canon EF 85mm f/1.8 USM
Higher ratedRanked #1 in Best Portrait Lenses Under $500
Canon EF 85mm f/1.8 USM
4 sources$710.39as of Aug 2

Digital Camera World and Ken Rockwell both like the Canon EF 85mm f/1.8 USM for budget portrait and low-light work, praising the compact design, fast autofocus, and sharpness beyond what the price suggests. There is no weather-sealing and no hood in the box, yet reviewers still rate the value highly next to pricier options like the f/1.2L II. Stopped down it performs well; wide open, sharpness is only modest. Enthusiasts and beginners who want an affordable telephoto prime that covers a lot of ground are the fit, while professionals may prefer the tougher L-series options.

Strengths
  • — Small, compact build and lightweight at 425g, making it highly portable for travel and everyday use
  • — Good overall image quality with sufficient sharpness for portraiture, especially when stopped down
  • — Fast f/1.8 aperture allows for decent low-light performance and shallow depth of field effects
Watch-outs
  • — No weather-seals, making it less durable in harsh conditions
  • — Hood sold separately, adding to the overall cost
  • — Edge-sharpness could be better, particularly when shooting wide-open
$710.39 · Check Price on AmazonFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Canon EF 50mm f/1.8 STM

The Canon EF 50mm f/1.8 STM surpasses the Sony FE 50mm f/1.8 in terms of autofocus quietness and manual focus capability, but it's not as sharp as the Canon RF50mm F1.8 STM. Compared to the Canon EF 85mm f/1.8 USM, it lacks the telephoto reach and professional build quality, though it's more affordable and offers better low-light performance. It's the most balanced option for beginners but doesn't match the premium features of the RF50mm F1.8 STM or the telephoto capabilities of the 85mm lens.

Canon EF 85mm f/1.8 USM

The Canon EF 85mm f/1.8 USM provides the telephoto reach and portability that the Sony FE 50mm f/1.8 lacks, but it's significantly heavier and more expensive than the Canon EF 50mm f/1.8 STM. Compared to the Canon RF50mm F1.8 STM, it offers less advanced optical design and doesn't include the aspherical element, though it's more versatile for portrait work. It's the most versatile of the group for telephoto applications but lacks the image stabilization and weather-sealing found in higher-end L-series lenses.

Specs side-by-side

SpecCanon EF 50mm f/1.8 STMCanon EF 85mm f/1.8 USM
MountCanon EFCanon EF
Focal Length50mm85 mm
Max Aperturef/1.8F1.8
AutofocusSTM Stepping MotorUSM
Image StabilizationNoneNo
Weight159g425 g
← See the full ranking of best portrait lenses under $500