Tamron 18-300mm F3.5-6.3 B061 RF Specs & DoF

18–300 mm

Focal length

f/3.5–6.3

Maximum aperture

100°–8°

Diagonal angle of view (Full frame)

Full frame

Designed for

16.7×

Zoom ratio

Specifications#

Brand: Tamron
Model: 18-300mm F3.5-6.3 B061 RF
Lens type: Superzoom
Focal length: 18–300 mm
Maximum aperture: f/3.5–6.3
Image circle: Full frame (36×24 mm)
Mount(s): Canon RF
Projection: Rectilinear
Lensfun correction profile: Yes — distortion/vignetting/TCA

Equivalent focal length on different cameras#

Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).

Camera format	At 18 mm	At 73 mm	At 300 mm	Equiv. aperture (DoF)
Full frame	18 mm · 100°	73 mm · 33°	300 mm · 8°	f/3.5
APS-C	27 mm · 76°	110 mm · 22°	450 mm · 5°	f/5.2
APS-C (Canon)	29 mm · 73°	117 mm · 21°	480 mm · 5°	f/5.6
Micro Four Thirds	36 mm · 62°	146 mm · 17°	600 mm · 4°	f/7.0

Depth of field & background blur#

Computed on its native Full frame format (CoC 30 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 20 mm f/4 on full frame.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
18 mm	f/3.5	70.8 cm	4.37 m	∞	∞	3.10 m	0.1%
18 mm	f/4	83.8 cm	6.37 m	∞	∞	2.72 m	0.1%
18 mm	f/8	3.09 m	∞	∞	∞	1.37 m	0.1%
73 mm	f/3.5	3.7 cm	15.2 cm	98.0 cm	4.07 m	50.8 m	2.2%
73 mm	f/4	4.2 cm	17.4 cm	1.12 m	4.71 m	44.5 m	1.9%
73 mm	f/8	8.4 cm	35.0 cm	2.33 m	11.2 m	22.3 m	1.0%
300 mm	f/3.5	0.2 cm	0.8 cm	5.5 cm	22.6 cm	857 m	42.0%
300 mm	f/4	0.2 cm	0.9 cm	6.3 cm	25.9 cm	750 m	36.8%
300 mm	f/8	0.4 cm	1.8 cm	12.5 cm	51.8 cm	375 m	18.4%

Handheld & night-sky limits#

NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).

Body	Min. handheld shutter (longest focal)	500 rule at 18 mm	NPF at 18 mm, f/3.5
Full frame	1/320 s	28 s	17 s
APS-C	1/500 s	19 s	13 s
APS-C (Canon)	1/500 s	17 s	13 s
Micro Four Thirds	1/640 s	14 s	12 s

Compatible cameras#

Bodies in our database with a native Canon RF mount.

Adapt it to other systems#

Sony E-mount Nikon Z Fujifilm X-mount Canon EF-M Hasselblad XCD Nikon 1 (CX)Pentax Q

Similar lenses#

Canon RF-S 18-150mm F3.5-6.3 IS STM f/3.5–6.3
Sigma 16-300mm F3.5-6.7 DC OS | C f/3.5–6.7
Canon RF 24-240mm F4-6.3 IS USM f/4–6.3

Frequently asked questions#

Is the Tamron 18-300mm F3.5-6.3 B061 RF full frame?

Yes — it covers the full 36 × 24 mm frame.

What is the Tamron 18-300mm F3.5-6.3 B061 RF equivalent to on APS-C?

On a 1.5× APS-C body it frames like 27–450 mm, and like 29–480 mm on Canon APS-C.

What is the Tamron 18-300mm F3.5-6.3 B061 RF good for?

As a superzoom it suits travel photography with one lens from wide to telephoto.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0