Canon 85mm f1.8 USM - 1918

Canon 85mm f1.8 USM - 1918

What our Experts Think

• Classic portrait focal length — 85 mm gives flattering perspective and strong subject separation
• Fast f/1.8 aperture delivers beautiful background blur (bokeh) and strong low‑light performance
• Sharp optics with great contrast across the frame, especially wide open for portraits
• USM autofocus is fast, quiet, and accurate for stills and video
• Compact and lightweight — easy to carry as a go‑to prime
• Excellent value for performance compared to higher‑priced alternatives
• Minimal chromatic aberration and reliable colour rendition
• No image stabilization — manageable with careful technique or higher shutter speed

Q&A

Q1: What kind of lens is this?
A: It’s a short‑telephoto prime lens for Canon EF‑mount full‑frame DSLRs, also excellent on APS‑C bodies where it acts like ~136 mm equivalent.

Q2: What are the key optical specs?
A: Fixed 85 mm focal length, bright f/1.8 aperture, and an 8‑blade diaphragm, offering sharp images and pleasing background separation.

Q3: How good is the autofocus?
A: Fast, quiet Ultrasonic Motor (USM) autofocus with full‑time manual focus override ensures quick and precise focus control.

Q4: Is it good for portraits?
A: Yes — the 85 mm focal length and wide f/1.8 aperture produce flattering compression and smooth background blur, ideal for portraits and head‑and‑shoulders shots.

Q5: Does it have image stabilization?
A: No — this model lacks optical image stabilization, so hand‑held shooting in low light benefits from a steady grip or stabilized body.

Q6: How’s the build and handling?
A: Compact and lightweight (~425 g), with a non‑rotating front element and metal mount — easy to use and attach filters without affecting focus.

Q7: What’s the close‑focus performance?
A: Minimum focusing distance ~0.85 m (~2.8 ft) with ~0.13× magnification — fine for everyday portraits and detail shots.

Q8: How is image quality?
A: Sharp and clear across apertures with good contrast; wide‑open performance is solid, improving further when stopped down.

Maintenance Tips

• Clean optics carefully: Use a blower and microfiber cloth; avoid touching the glass directly.
• Protect lens elements: Always use front/rear caps and a lens hood to prevent scratches, dust, and flare.
• Store safely: Keep in a dry, padded case with silica gel to prevent moisture and fungus.
• Operate focus smoothly: Use the USM ring gently; never force it.
• Avoid extreme conditions: Protect from rain, dust, heat, and humidity.
• Inspect periodically: Check for dust, fungus, or mechanical issues.
• Transport securely: Use a dedicated pouch or padded bag compartment to prevent impact damage.