# Canon EF 70-200mm f/2.8L IS III USM

Source: https://www.ranked10.co.uk/tech/best-70-200mm-lenses/canon-ef-70-200mm-f2-8l-is-iii
Ranked #3 in "Best 70-200mm Lenses 2026: 9 Ranked, and Five Aperture Fields That Don't Add Up": https://www.ranked10.co.uk/tech/best-70-200mm-lenses

- Price: £1,694.99 (checked on Amazon UK on 2026-09-18)
- Amazon rating: 4.6 from 205 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B07DLRXF43?tag=ranked10-21

The Canon EF 70-200mm f/2.8L IS III USM is the third entry in our guide to 70-200mm lenses. It is an EF-mount telephoto zoom for Canon EOS DSLRs, listed at £1,694.99 with 4.6 out of 5 from 205 ratings. Canon positions it for event, sport and wildlife work, and the listing's own bullets point to a 3.5-stop image stabiliser, fluorite and UD optics, and a ring-type USM motor.

The spec table is where this fiche gets interesting, and not in a good way. It gives "Maximum Aperture: 32 f" and "Minimum Aperture: 2.8 f" — the two fields are the wrong way round, because f/2.8 is the widest opening the lens has and f/32 the narrowest, exactly as the product name and the first bullet ("f/2.8 maximum aperture") say. Other fields are loose in the same style: a zoom with a "Fixed Focal Length" of 70 millimetres, a "Screen Size" of 19.9 centimetres, a "Lens Colour" of Black against a "Colour" of White, and a compatible-camera entry written in Italian. Nothing on this page was measured by us — every figure comes from the Amazon listing, including the ones that disagree with each other.

## Specification

| Field | Value |
|---|---|
| Price | £1,694.99 |
| Rating | 4.6 out of 5 from 205 ratings |
| Maximum aperture (as listed) | 32 f |
| Minimum aperture (as listed) | 2.8 f |
| Focal length range | 70.1 mm to 200 mm |
| Filter size | 77 mm |
| Mount | Canon EF (bullets also list EF-S bodies) |
| Screen size (as listed) | 19.9 Centimetres |

## Questions people ask

**What is the maximum aperture of the Canon EF 70-200mm f/2.8L IS III USM?**

The listing's spec table says "Maximum Aperture: 32 f" and "Minimum Aperture: 2.8 f". That is the reverse of the product name and of the first bullet, which describes an f/2.8 maximum aperture, so read the two fields as swapped.

**Is the Canon EF 70-200mm f/2.8L IS III USM weather-sealed?**

The bullets say protective seals guard against dust and moisture, and that the front and rear elements carry a fluorine coating that is easy to clean.

**What filter size does the Canon EF 70-200mm f/2.8L IS III USM take?**

The listing gives a photo filter size of 77 millimetres.

**Which cameras does the Canon EF 70-200mm f/2.8L IS III USM fit?**

The compatibility bullet names Canon EOS DSLR cameras with EF/EF-S mount. The separate compatible-camera-models field is written in Italian: "Tutte le fotocamere Canon con attacco EF".

**How much light does the f/2.8 aperture let in?**

The listing states that a fast f/2.8 aperture lets in twice as much light as an f/4 lens, and that the 3.5-stop image stabiliser guards against camera shake.

**How is the Canon EF 70-200mm f/2.8L IS III USM rated by buyers?**

It holds 4.6 out of 5 across 205 ratings, with 85 of those ratings at five stars and 6 at one star.