Canon EOS 70D Specs, Sensor Size & Crop Factor

Q: What is the crop factor of the Canon EOS 70D?

The Canon EOS 70D has a crop factor of 1.60× relative to 35 mm full frame (diagonal 27.0 mm vs 43.3 mm).

1.60×

Crop factor

22.5×15.0 mm

Sensor size

338 mm²

Area · 39% of full frame

20.2 MP

Resolution

4.11 µm

Pixel pitch

f/6.1

Diffraction-limited aperture

2013

Release year

Specifications#

Brand: Canon
Model: EOS 70D
Camera type: DSLR
Released: 2013-01-01
Lens mount: Canon EF-S
Sensor size: 22.5 × 15.0 mm (APS-C (Canon))
Crop factor: 1.60×
Resolution: 20.2 MP (5,472 × 3,648 px)
Continuous shooting: 7 fps
Weight: 675 g (23.8 oz)
Sensor type: CMOS
Storage: SD/SDHC/SDXC card (UHS-I bus supported)
Viewfinder: Eye-level pentaprism with 98% coverage and 0.95x magnification / LCD (Live View)
AF points / area: 19 cross-type AF points
Metering: Full aperture TTL, 63 zones iFCL SPC
Shutter: Electronic focal-plane
Flash: E-TTL II auto-pop-up built-in / External
Battery: Li-Ion LP-E6 rechargeable (1800 mAh)
Lens: Interchangeable
Predecessor: Canon EOS 60D
Successor: Canon EOS 80D
Launch price: US$1199/€1099/£1080 (body only)
Drive: 7.0 fps for 40 JPEG frames or for 15 raw frames

Specifications merged from Wikipedia, Wikidata, Lensfun and openMVG. Spot an error? Tell us.

Sensor size compared#

The Canon EOS 70D sensor (highlighted) drawn to scale against common formats. Its area is 39% of a full-frame sensor, which collects about 1.4 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 1.60 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.

Lens on this camera	Full-frame equivalent	Horizontal	Vertical	Diagonal
8 mm	13 mm	109.2°	86.3°	118.8°
10 mm	16 mm	96.7°	73.7°	107.0°
12 mm	19 mm	86.3°	64.0°	96.8°
14 mm	22 mm	77.6°	56.4°	88.0°
16 mm	26 mm	70.2°	50.2°	80.4°
18 mm	29 mm	64.0°	45.2°	73.8°
20 mm	32 mm	58.7°	41.1°	68.1°
24 mm	38 mm	50.2°	34.7°	58.8°
28 mm	45 mm	43.8°	30.0°	51.6°
35 mm	56 mm	35.6°	24.2°	42.2°
40 mm	64 mm	31.4°	21.2°	37.4°
50 mm	80 mm	25.4°	17.1°	30.3°
56 mm	90 mm	22.7°	15.3°	27.1°
70 mm	112 mm	18.3°	12.2°	21.9°
85 mm	136 mm	15.1°	10.1°	18.1°
100 mm	160 mm	12.8°	8.6°	15.4°
135 mm	216 mm	9.5°	6.4°	11.4°
200 mm	320 mm	6.4°	4.3°	7.7°
300 mm	480 mm	4.3°	2.9°	5.2°
400 mm	640 mm	3.2°	2.1°	3.9°
600 mm	960 mm	2.1°	1.4°	2.6°
800 mm	1280 mm	1.6°	1.1°	1.9°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 18.8 µm (the 0.030 mm full-frame standard scaled by the crop factor). Detailed tables: 24 mm f/1.8, 24 mm f/2.8, 35 mm f/1.8, 35 mm f/2.8, 50 mm f/1.8, 50 mm f/2.8.

Focal	Aperture	50.0 cm	1.00 m	2.00 m	3.00 m	5.00 m	10.0 m	Hyperfocal
14 mm	f/1.8	8.4 cm	35.0 cm	1.55 m	4.19 m	32.7 m	∞	5.82 m
14 mm	f/2.8	13.2 cm	56.8 cm	2.97 m	13.3 m	∞	∞	3.75 m
14 mm	f/4	19.3 cm	88.0 cm	7.20 m	∞	∞	∞	2.63 m
14 mm	f/8	43.2 cm	3.50 m	∞	∞	∞	∞	1.32 m
27 mm	f/1.8	2.2 cm	9.0 cm	36.8 cm	84.2 cm	2.43 m	11.7 m	21.6 m
27 mm	f/2.8	3.4 cm	14.1 cm	58.0 cm	1.35 m	4.11 m	29.7 m	13.9 m
27 mm	f/4	4.9 cm	20.2 cm	84.7 cm	2.02 m	6.93 m	∞	9.75 m
27 mm	f/8	9.8 cm	41.7 cm	1.94 m	5.87 m	∞	∞	4.89 m
46 mm	f/1.8	0.7 cm	3.0 cm	12.5 cm	28.3 cm	79.5 cm	3.26 m	62.7 m
46 mm	f/2.8	1.1 cm	4.7 cm	19.4 cm	44.2 cm	1.25 m	5.26 m	40.4 m
46 mm	f/4	1.6 cm	6.8 cm	27.8 cm	63.5 cm	1.81 m	8.06 m	28.3 m
46 mm	f/8	3.2 cm	13.6 cm	56.5 cm	1.31 m	4.01 m	28.1 m	14.2 m
76 mm	f/1.8	0.2 cm	1.1 cm	4.5 cm	10.3 cm	28.8 cm	1.16 m	171 m
76 mm	f/2.8	0.4 cm	1.7 cm	7.0 cm	16.0 cm	44.8 cm	1.82 m	110 m
76 mm	f/4	0.6 cm	2.4 cm	10.0 cm	22.8 cm	64.2 cm	2.62 m	77.1 m
76 mm	f/8	1.1 cm	4.8 cm	20.0 cm	45.8 cm	1.30 m	5.52 m	38.6 m

Equivalent aperture#

Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.

Aperture on this camera	Full-frame equivalent (depth of field)	Hyperfocal at 27 mm
f/1.2	f/1.9	32.4 m
f/1.4	f/2.2	27.8 m
f/1.8	f/2.9	21.6 m
f/2	f/3.2	19.5 m
f/2.8	f/4.5	13.9 m
f/4	f/6.4	9.75 m
f/5.6	f/9.0	6.97 m
f/8	f/12.8	4.89 m

Diffraction & pixel pitch#

With 4.11 µm pixels, diffraction starts to soften pixel-level detail around f/6.1. For maximum sharpness keep landscapes between f/3.4 and f/6; stopping down further trades detail for depth of field.

Aperture	Airy disk diameter	Spread over	At 100% view
f/2.8	3.8 µm	0.9 px	sharp
f/4	5.4 µm	1.3 px	sharp
f/5.6	7.5 µm	1.8 px	sharp
f/8	10.7 µm	2.6 px	slight softening
f/11	14.8 µm	3.6 px	visibly soft
f/16	21.5 µm	5.2 px	visibly soft
f/22	29.5 µm	7.2 px	visibly soft

Maximum print sizes#

At 20.2 MP the Canon EOS 70D produces 5,472 × 3,648 pixel images. See the 20 megapixel guide or the print size calculator.

Resolution	Typical use	Inches	Centimetres
300 DPI	Photo-lab quality	18.2 × 12.2 in	46 × 31 cm
240 DPI	Fine-art inkjet	22.8 × 15.2 in	58 × 39 cm
200 DPI	Wall print	27.4 × 18.2 in	69 × 46 cm
150 DPI	Poster, viewed from 1 m+	36.5 × 24.3 in	93 × 62 cm

Night-sky exposure limits#

Longest exposure before stars trail. The NPF rule accounts for pixel pitch and is stricter than the classic 500 rule — use it for pin-sharp stars on high-resolution sensors.

Focal length	500 rule	NPF f/1.8	NPF f/2.8	NPF f/4
9 mm (14 mm eq.)	34.7 s	20.7 s	24.6 s	29.3 s
12 mm (19 mm eq.)	26.0 s	15.5 s	18.4 s	21.9 s
15 mm (24 mm eq.)	20.8 s	12.4 s	14.8 s	17.6 s
22 mm (35 mm eq.)	14.2 s	8.5 s	10.1 s	12.0 s
31 mm (50 mm eq.)	10.1 s	6.0 s	7.1 s	8.5 s

Open the NPF / 500 rule calculator →

Handheld shutter speed guide#

The reciprocal rule uses the equivalent focal length. High-resolution sensors may need one stop faster than this for pixel-sharp results.

Focal length	No stabilisation (1/equiv. focal)	With 3-stop IS	With 5-stop IBIS
15 mm	1/25 s	0.3 s	1.3 s
31 mm	1/50 s	1/6 s	0.6 s
62 mm	1/100 s	1/13 s	0.3 s
125 mm	1/200 s	1/25 s	1/6 s

Lenses for the Canon EOS 70D#

Native Canon EF-S lenses in our database (29 total). Also adaptable: T-mount (T2), Canon EF, M42 screw mount, Deckel (DKL), Tamron Adaptall, M39 / LTM (Leica thread).

Canon EF-S 18-135mm f/3.5-5.6 IS 18–135 mm
Canon EF-S 18-135mm f/3.5-5.6 IS STM 18–135 mm
Canon EF-S 55-250mm f/4-5.6 IS STM 55–250 mm
Canon EF-S 60mm f/2.8 Macro USM 60 mm
Canon EF 75-300mm F4-5.6 III 75–300 mm
Canon EF-S 10-18mm f/4.5-5.6 IS STM 10–18 mm
Canon EF-S 10-22mm f/3.5-4.5 USM 10–22 mm
Sigma 10-20mm f/3.5 EX DC HSM 10–20 mm
Tokina atx-i 11-16mm F2.8 CF 11–16 mm
Canon EF-S 15-85mm f/3.5-5.6 IS USM 15–85 mm
Canon EF-S 17-55mm f/2.8 IS USM 17–55 mm
Canon EF-S 17-85mm f/4-5.6 IS USM 17–85 mm
Canon EF-S 18-135mm f/3.5-5.6 IS USM 18–135 mm
Canon EF-S 18-200mm f/3.5-5.6 IS 18–200 mm
Canon EF-S 18-55mm f/3.5-5.6 18–55 mm
Canon EF-S 18-55mm f/3.5-5.6 II 18–55 mm
Canon EF-S 18-55mm f/3.5-5.6 III 18–55 mm
Canon EF-S 18-55mm f/3.5-5.6 IS 18–55 mm
Canon EF-S 18-55mm f/3.5-5.6 IS II 18–55 mm
Canon EF-S 18-55mm f/3.5-5.6 IS STM 18–55 mm
Canon EF-S 18-55mm f/4-5.6 IS STM 18–55 mm
Sigma 18-200mm f/3.5-6.3 DC Macro OS HSM 18–200 mm
Canon EF-S 24mm f/2.8 STM 24 mm
Samyang 35mm f/1.4 AS UMC 35 mm
Canon EF-S 55-250mm f/4-5.6 IS 55–250 mm
Canon EF-S 55-250mm f/4-5.6 IS II 55–250 mm
Sigma 60-600mm F4.5-6.3 DG OS HSM | Sports 018 60–600 mm
Sigma 60-600mm F4.5-6.3 DG OS HSM | Sports 018 + 1.4× ext. 60–600 mm
Sigma 90mm f/2.8 Macro AF 90 mm

Frequently asked questions#

What is the crop factor of the Canon EOS 70D?

The Canon EOS 70D has a crop factor of 1.60× relative to 35 mm full frame (diagonal 27.0 mm vs 43.3 mm).

What size is the Canon EOS 70D sensor?

22.5 × 15.0 mm (APS-C (Canon)), an area of 338 mm² — 39% of full frame.

Is the Canon EOS 70D full frame?

No — its sensor is APS-C (Canon), which is 2.6× smaller in area than full frame.

How many megapixels does the Canon EOS 70D have?

20.2 megapixels (5,472 × 3,648 pixels), enough for a 18 × 12 inch print at 300 DPI.

What lens mount does the Canon EOS 70D use?

The Canon EOS 70D uses the Canon EF-S (flange distance 44.00 mm).

How long can I expose the night sky with the Canon EOS 70D?

With a 12 mm lens (19 mm equivalent) the 500 rule gives 26 s and the stricter NPF rule at f/2.8 gives 18 s.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources