1. Finitaview
The Canon EF-M 22mm f/2 STM is a moderate wide-angle lens designed for the EOS M Digital Camera series. Its ultra-slim and compact form factor makes it highly portable. Featuring a bright f/2.0 aperture, this lens excels in low-light conditions and produces attractive background blur (bokeh). An aspheric lens element contributes to high resolution and contrast. The built-in Stepping Motor (STM) ensures smooth and quiet continuous autofocus, particularly beneficial for video recording. With a short minimum focusing distance, it allows for close-up photography.

Figura 1: Fronte view of the Canon EF-M 22mm f2 STM Compact System Lens.
2. Cosa c'è nella scatola
- EF-M22mm 1:2 STM Lens
- Copriobiettivo E-43
- Copriobiettivo EB
- Libretto di istruzioni
- Scheda di garanzia
3. Caratteristiche principali
- Moderate Wide-Angle: Equivalent to 35mm on a full-frame camera, offering a versatile field of view.
- Messa a fuoco automatica fluida e silenziosa: Built-in Stepping Motor (STM) provides silent and fluid continuous autofocus, ideal for video recording.
- Bright f/2.0 Aperture: Excellent for low-light performance and creating beautiful, soft background blur with its 7-blade circular aperture.
- Alta qualità dell'immagine: An aspheric lens element ensures high resolution and contrast.
- Close-Up Capabilities: Minimum focusing distance of 5.9 inches (0.15 meters) allows for detailed close-up shots.
- Design compatto: Ultra-slim and lightweight, making it easy to carry and suitable for travel.
4. Configurazione e installazione
Fissaggio dell'obiettivo
- Assicurarsi che la fotocamera sia spenta.
- Remove the rear lens cap from the EF-M 22mm f/2 STM lens and the body cap from your EOS M camera.
- Allineare il punto rosso sull'obiettivo con il punto rosso sull'attacco dell'obiettivo della fotocamera.
- Inserire l'obiettivo nel supporto della fotocamera e ruotarlo in senso orario finché non scatta in posizione.
Staccare la lente
- Assicurarsi che la fotocamera sia spenta.
- Tenendo premuto il pulsante di rilascio dell'obiettivo sul corpo della fotocamera, ruotare l'obiettivo in senso antiorario fino all'arresto.
- Rimuovere con cautela l'obiettivo dalla fotocamera.
- Attach the rear lens cap to the removed lens and the body cap to the camera to protect the sensor.

Figura 2: lato view of the Canon EF-M 22mm f2 STM lens, showing the mount.
5. Utilizzo dell'obiettivo
Messa a fuoco automatica (AF) e messa a fuoco manuale (MF)
The EF-M 22mm f/2 STM lens supports both autofocus and manual focus. The STM (Stepping Motor) technology provides exceptionally smooth and quiet autofocus, which is particularly advantageous when shooting video, as it minimizes distracting focus motor noise. For precise control, switch to manual focus mode on your camera.
Aperture and Low-Light Performance
With a wide maximum aperture of f/2.0, this lens allows a significant amount of light to reach the camera's sensor. This makes it highly effective for shooting in challenging low-light conditions without needing to drastically increase ISO sensitivity. The wide aperture also enables shallow depth of field, creating a pleasing background blur that isolates your subject.
Fotografia ravvicinata
The lens features a minimum focusing distance of just 0.15 meters (5.9 inches). This allows you to get very close to your subjects, capturing intricate details and achieving a near-macro effect. Experiment with this feature for creative close-up shots.

Figura 3: Fronte view of the Canon EF-M 22mm f2 STM lens, illustrating the aperture blades.
Understanding STM Lenses
The Stepping Motor (STM) is a type of autofocus motor designed by Canon to provide smooth and quiet focusing, especially during video recording. Unlike traditional ultrasonic motors (USM) which can be noisy, STM lenses are optimized for silent operation, preventing unwanted audio interference in your videos.
Video 1: Un overview of Canon STM Lenses, explaining their benefits for smooth and quiet autofocus.
6. Manutenzione e cura
- Pulizia della lente: Use a soft, lint-free cloth or a lens brush to remove dust. For smudges, use a lens cleaning solution and a microfiber cloth. Avoid touching the glass elements directly with your fingers.
- Magazzinaggio: When not in use, keep the lens attached to the camera or with both front and rear caps on. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Evitare l'impatto: Protect the lens from drops or impacts, which can damage internal components.
- Protezione dall'umidità: Avoid exposing the lens to excessive moisture or humidity. If it gets wet, dry it immediately with a soft cloth.
7. Risoluzione Dei Problemi
- Messa a fuoco automatica non funzionante: Ensure the lens is securely mounted to the camera. Check the camera's focus mode settings (AF/MF). Clean the electrical contacts on both the lens and camera body with a clean, dry cloth.
- Problemi di qualità dell'immagine: Ensure the lens elements are clean and free from dust or smudges. Check camera settings for appropriate aperture, ISO, and shutter speed.
- Lens Not Recognized: Power off the camera, detach and reattach the lens, then power on the camera again. Ensure camera firmware is up to date.
8. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Lunghezza focale e apertura massima | 22 mm, f / 2 |
| Costruzione della lente | 7 elementi in 6 gruppi |
| Angolo diagonale di View | 63°30' |
| Regolazione della messa a fuoco | Inner Focusing System |
| Distanza di messa a fuoco più vicina | 0.49 piedi / 0.15 m |
| Dimensione del filtro | 43mm |
| Diametro x lunghezza max. | 2.4 x 0.9 pollici / 60.9 x 23.7 mm |
| Peso | 3.7 once / 105 g |
| Numero modello articolo | Numero di modello: 5985B002 |
| ASIN | B008NF8BRI |
9. Garanzia e supporto
This product is subject to a 14-day return policy. For detailed warranty information and customer support, please refer to the Warranty Card included in the product packaging or visit the official Canon support website. Ensure you register your product to activate any applicable warranties.





