Cameras Ranked

18–300 Tamron 18-300mm F3.5-6.3 Di III-A VC VXD

The Tamron 18-300mm F3.5-6.3 Di III-A VC VXD is a zoom lens for Canon RF (APS-C) that covers 18-300 mm at f/3.5-6.3, weighs 625 g and focuses as close as 0.15 m at 18 mm, 0.99 m at 300 mm. Next to 2 other APS-C Canon RF zoom lenses in its focal range, it suits you if you want more reach at the long end. If you carry it all day or travel light, every other one that does better on weight gives up reach.

  • f/3.5-6.3widest aperture
  • 625 gweight
  • 17bodies it fits
To one scale. Tamron 18-300mm F3.5-6.3 Di III-A VC VXD: length 123.6 mm, diameter 75.5 mm, filter thread 67 mm.123.6 mmø75.5
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Compare it with another lensAll Canon RF lenses

To one scale. Tamron 18-300mm F3.5-6.3 Di III-A VC VXD: length 123.6 mm, diameter 75.5 mm, filter thread 67 mm.123.6 mmø75.5
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Where it sits

3 lenses

APS-C Canon RF zoom lenses in its focal range that state each value, this one included. Each tick is one; the thick one is this one.

Bodies it fits

17 bodies

All cameras, by maker and mount

Specifications

Focal length
18-300 mm
Widest aperture
f/3.5-6.3
Closest focus
0.15 m at 18 mm, 0.99 m at 300 mm1
Maximum magnification
0.5x at 18 mm, 0.25x at 300 mm1
Stabilization
Yes1
Mount
Canon RF1
Covers
APS-C
Type
Zoom
Weight
625 g1
Length
123.6 mm1
Diameter
75.5 mm1
Filter thread
67 mm1
On sale from
Sep 26, 20251
Elements
191
Groups
151
Aperture blades
71
Hood
Flower-shaped hood1

Sources

  1. Tamron product specifications, checked Oct 6, 2026

Worked out by code, not stated by a source

  • Focal length and widest aperture as the lens's own name states them.
  • Read from the lens name: each maker marks the sensor size a lens covers (Sony FE/E, Canon RF/RF-S, Nikon DX, Tamron Di III/Di III-A, Sigma DG/DC); every Fujifilm X lens is APS-C and every Micro Four Thirds lens is Four Thirds.
  • Prime or zoom, read from the focal length in the lens name.

Each value is checked automatically against the source it links, on the date shown. How we build these pages

† The makers' own tables, row by row, with labels in our plain words (translated where the maker's page isn't in English); each row's numbers are checked against the page it links.

Full specifications†

Show all 16 rows
Full specificationsTamron 18-300mm F3.5-6.3 Di III-A VC VXD1
Diagonal angle of view73°49'-5°10' (for CANON RF mount)
Lens mount typeCANON RF Mount
Optical element and group count19 elements in 15 groups
Minimum object distance wide0.15m (5.9in) (WIDE)
Minimum object distance tele0.99m (39in) (TELE)
Maximum magnification wide1:2 (WIDE)
Maximum magnification tele1:4 (TELE)
Vibration compensation availabilityYes
Filter thread diameterΦ67mm
Maximum lens diameterΦ75.5mm
Lens length123.6mm (4.9in) (for CANON RF mount)
Lens weight625g (22oz) (for CANON RF mount)
Aperture blade count7 (circular diaphragm)
Minimum aperture rangeF22-40
Included accessoriesFlower-shaped hood, Front cap, Rear cap
Product release dateSeptember 26, 2025 (CANON RF Mount)

How the pick works

  1. Widest aperture3

    Lower wins once they are 0.3 apart.

  2. Weight2

    Lower wins from a 12% gap.

  3. Focal length (longest)2

    Higher wins from a 15% gap.

  4. Focal length (widest)2

    Lower wins once they are 2 mm apart.

  5. Optical stabilization1

    Having it wins.

  6. Closest focus, wide end1

    Lower wins from a 15% gap. Compared only between lenses of the same focal length (widest).

  7. Filter thread0.5

    Lower wins once they are 5 mm apart.

  8. Lead for a pick1

Our pick or our take adds up the importance of each real difference, with these importances and thresholds: a gap smaller than its row's threshold is too close to call and counts as the same. They are our editorial choice, not a measurement, the same on every page, and they never read prices, sales or who sells it.

Paid placements0

How we rank, in full