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Canon

Canon EF 100mm f/2 USM

A 1991 short-telephoto prime: 100 mm f/2 with ring USM and full-time manual focus, at 460 g.

Used from
£199
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Used
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eBay used
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£152
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MPB
MPB used
Inspected used stock · 12-month warranty
£199
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New
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eBay
Lowest Buy It Now · marketplace
£140
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Core
Released
1991
Focal Length
100mm
Aperture
f/2
Compatible Mount
Canon EF
Filter Size
58mm
Dimensions
75mm diameter × 73.5mm length
Weight
460g
Weather Sealed
No
Optics & Focus
AF Motor
Ultrasonic Motor (USM)
Optical IS
None (relies on body IS if available)
Aperture Blades
8
Magnification
0.14x
Min. Focus Distance
90cm

Select up to 2 cameras to compare against the EF 100mm f/2 USM. It's always pinned as the baseline.

Select 1–3 cameras to compare

24 cameras compatible with the Canon EF mount.

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EOS 6D
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EOS-1D Mark III
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EOS-1D Mark IV
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EOS-1D Mark IV
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EOS 5D Mark III
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EOS 5D Mark III
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EOS-1D X
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EOS 6D Mark II
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EOS-1D X Mark II
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EOS-1D X Mark II
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GearScore™ — Suitability by Genre

Base score — computed from verified specs for an enthusiast shooting photo and video. Camera Match adjusts it for your skill level and priorities.

Portrait
7.2/10
Street
5.3/10
Travel
4.4/10
Wedding & Events
5.2/10
Filmmaking
3.8/10
Documentary
4.5/10
Sports & Action
5.5/10
Landscape
4.3/10
Casual
4.5/10
Food
4.7/10
Architecture
4.2/10
Underwater
4.5/10
✅ Great For
🧑
Portrait 7.2 Strong on focal length, maximum aperture and autofocus.
⚠️ Not Ideal For
🎬
Filmmaking 3.8 Held back by video handling and focal length.
🏛️
Architecture 4.2 Held back by focal length and generation.
🌄
Landscape 4.3 Held back by focal length and weather sealing.
📝 How suitability scores are calculated GearScore™ genre scores are calculated from this camera's verified specifications — autofocus, sensor, weight, weather sealing and more — weighted by what matters for each type of photography. Where a spec sheet misses something (e.g. a manual-focus rangefinder for street), we apply a documented editorial adjustment. Scores are not based on customer reviews. See our full methodology →
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