Canon EF 5985B002 22mm f/2 STM Review

The Canon 22mm f/2 is incredibly small and well-built, but its optical performance and high current price make it a tough sell against newer competitors.

Focal Length 22mm
Max Aperture f/2
Mount Canon EF-M
Stabilization No
Weather Sealed No
Weight 105 g
Lens Type Wide-Angle
Canon EF 5985B002 22mm f/2 STM lens
57.6 Overall Score

Overview

If you're shooting with a Canon EOS M camera and want a compact, everyday lens, the Canon EF-M 22mm f/2 STM is probably on your radar. It's a 35mm-equivalent wide-angle prime, which makes it a great fit for street photography, casual portraits, and general walk-around use. The f/2 aperture is bright enough for low light, and the whole package weighs just 105 grams, so it barely adds any bulk to your camera. People often ask, 'what's a good small lens for my Canon M50?' and this is a classic answer. It's a simple, straightforward lens designed to make your mirrorless kit more portable and fun to use.

Performance

The performance story here is about trade-offs. The f/2 aperture lands in the 69th percentile, which is decent. It lets in enough light for indoor shots without a flash and gives you some background blur for subject separation. However, the optical quality score is in the 8th percentile, which is low. In practice, that means you might see some softness in the corners, especially when shooting wide open. The autofocus is middle-of-the-road at the 47th percentile. It's quiet and fine for still subjects or casual video, but don't expect lightning-fast tracking for sports. It scored a 51.5 for street photography, which feels about right. It's quick to handle and discreet, but the optical limits show if you pixel-peep.

Performance Percentiles

AF 46.4
Bokeh 63.3
Build 98.7
Macro 80.3
Optical 5.6
Aperture 68.6
Versatility 37.5
Social Proof 53.6
Stabilization 37.9

Pros & Cons

Pros

  • Incredibly small and lightweight at 105g 99th
  • Bright f/2 aperture for low light 80th
  • Near-silent STM autofocus motor 69th
  • Excellent build quality for its size (99th percentile)
  • Perfect 35mm-equivalent focal length for everyday shots

Cons

  • Optical quality is a weak point (8th percentile) 6th
  • No image stabilization
  • Not weather-sealed
  • Weak for landscape photography (26.7 score)
  • Fixed focal length limits versatility

Specifications

Full Specifications

Optics

Type Wide-Angle
Focal Length Min 22
Focal Length Max 22
Elements 7
Groups 6

Aperture

Max Aperture f/2

Build

Mount Canon EF-M
Weight 0.1 kg / 0.2 lbs
Filter Thread 43

Focus

Min Focus Distance 150

Value & Pricing

Here's the tricky part: the current price is listed around $418. That's a lot for this lens. When it launched, it was a $250 lens, and at that price, its compromises were much easier to swallow. At over $400, you're paying a premium for the compact form and the Canon name. You have to really value that tiny size to justify the cost, because optically, there are sharper options for the money, even for the EF-M mount.

Price History

$410 $420 $430 $440 $450 $460 Feb 19Mar 16Mar 28Apr 10Apr 22May 7 $417

vs Competition

Let's talk alternatives. The Viltrox 23mm f/1.4 for EF-M is a direct competitor. It's a bit bigger and heavier, but it's sharper, has a faster aperture, and usually costs less. If you want better image quality and don't mind the size, the Viltrox is a smarter buy. The Meike 22mm f/2.8 is another tiny option that's much cheaper, though it's manual focus only. For Canon M shooters asking 'what's better, the Canon 22mm or the Viltrox 23mm?', the answer is usually the Viltrox for performance, unless absolute minimum size is your top priority. The listed competitors like the Meike 35mm F1.8 or Yongnuo 35mm are for other camera systems, so they're not direct swaps.

Spec Canon EF 5985B002 22mm f/2 STM Meike Meike 55mm F1.4 Standard Aperture APS-C Frame AF Viltrox Air VILTROX 35mm F1.7 f/1.7 Air AF Lens for Fuji X Tamron Di III Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus Sirui Sniper Sirui Sniper 56mm f/1.2 Autofocus Lens (Sony E,
Focal Length 22mm 55mm 35mm 17-70mm - 56mm
Max Aperture f/2 f/1.4 f/1.7 f/2.8 f/1.4 f/1.2
Mount Canon EF-M Nikon Z Fujifilm X Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-Mount, Sony E-M Fujifilm X Sony E
Stabilization false true true true true true
Weather Sealed false false false false true false
Weight (g) 105 281 400 544 320 422
AF Type - STM STM Autofocus STM Autofocus
Lens Type Wide-Angle - - Wide-Angle Zoom - -
Compare Compare Compare Compare Compare
Product AfBokehBuildMacroOpticalApertureVersatilitySocial ProofStabilization
Canon EF 5985B002 22mm f/2 STM 46.463.398.780.35.668.637.553.637.9
Meike 55mm F1.4 Standard Aperture APS-C Frame AF STM Compare 95.681.881.189.167.588.137.589.987.8
Viltrox Air 35mm F1.7 f/1.7 AF Compare 95.673.663.493.27480.537.595.187.8
Tamron Di III 17-70mm f/2.8 -A VC RXD Compare 46.459.264.377.490.854.692.595.187.8
Fujifilm VILTROX 56mm F1.4 STM APS-C Frame Auto Focus Standard Prime Compare 95.681.888.885.334.688.137.586.787.8
Sirui Sniper 56mm f/1.2 Autofocus Compare 46.496.773.853.479.895.937.59887.8

Verdict

So, should you buy the Canon EF-M 22mm f/2? It depends. If you found it used for under $250 and your main goal is to have the smallest possible lens on your EOS M for street and travel, it's a fun pick. The build is great, and it makes your camera a true pocketable package. But at its current retail price of $418, it's hard to recommend. The optical performance isn't strong enough to command that price. For most people, the Viltrox 23mm f/1.4 offers more for less money. Only get this Canon if you've handled it, love the tiny form factor, and find it at a steep discount.