Specifications#
- Brand
- Canon
- Model
- EOS Rebel T3
- Camera type
- DSLR
- Lens mount
- Canon EF-S
- Sensor size
- 22.2 × 14.8 mm (APS-C (Canon))
- Crop factor
- 1.62×
Specifications merged from Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 1.62 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 | 108.4° | 85.7° | 118.2° |
| 10 mm | 16 mm | 96.0° | 73.2° | 106.3° |
| 12 mm | 19 mm | 85.5° | 63.5° | 96.1° |
| 14 mm | 23 mm | 76.8° | 55.9° | 87.3° |
| 16 mm | 26 mm | 69.5° | 49.8° | 79.7° |
| 18 mm | 29 mm | 63.3° | 44.8° | 73.1° |
| 20 mm | 32 mm | 58.1° | 40.7° | 67.5° |
| 24 mm | 39 mm | 49.6° | 34.4° | 58.2° |
| 28 mm | 45 mm | 43.2° | 29.7° | 51.0° |
| 35 mm | 57 mm | 35.2° | 24.0° | 41.8° |
| 40 mm | 65 mm | 31.0° | 21.0° | 36.9° |
| 50 mm | 81 mm | 25.0° | 16.9° | 29.9° |
| 56 mm | 91 mm | 22.4° | 15.1° | 26.8° |
| 70 mm | 113 mm | 18.0° | 12.1° | 21.6° |
| 85 mm | 138 mm | 14.9° | 10.0° | 17.9° |
| 100 mm | 162 mm | 12.7° | 8.5° | 15.2° |
| 135 mm | 219 mm | 9.4° | 6.3° | 11.3° |
| 200 mm | 324 mm | 6.4° | 4.3° | 7.6° |
| 300 mm | 486 mm | 4.2° | 2.8° | 5.1° |
| 400 mm | 648 mm | 3.2° | 2.1° | 3.8° |
| 600 mm | 972 mm | 2.1° | 1.4° | 2.6° |
| 800 mm | 1296 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 18.5 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 | 8.3 cm | 34.5 cm | 1.53 m | 4.11 m | 30.2 m | ∞ | 5.89 m |
| 14 mm | f/2.8 | 13.1 cm | 56.0 cm | 2.90 m | 12.6 m | ∞ | ∞ | 3.79 m |
| 14 mm | f/4 | 19.0 cm | 86.5 cm | 6.88 m | ∞ | ∞ | ∞ | 2.66 m |
| 14 mm | f/8 | 42.5 cm | 3.35 m | ∞ | ∞ | ∞ | ∞ | 1.34 m |
| 27 mm | f/1.8 | 2.2 cm | 8.9 cm | 36.4 cm | 83.1 cm | 2.40 m | 11.5 m | 21.9 m |
| 27 mm | f/2.8 | 3.4 cm | 13.9 cm | 57.3 cm | 1.33 m | 4.04 m | 28.6 m | 14.1 m |
| 27 mm | f/4 | 4.8 cm | 20.0 cm | 83.6 cm | 1.99 m | 6.79 m | ∞ | 9.87 m |
| 27 mm | f/8 | 9.7 cm | 41.2 cm | 1.91 m | 5.71 m | ∞ | ∞ | 4.95 m |
| 46 mm | f/1.8 | 0.7 cm | 3.0 cm | 12.3 cm | 28.0 cm | 78.5 cm | 3.22 m | 63.5 m |
| 46 mm | f/2.8 | 1.1 cm | 4.7 cm | 19.2 cm | 43.7 cm | 1.23 m | 5.19 m | 40.9 m |
| 46 mm | f/4 | 1.6 cm | 6.7 cm | 27.5 cm | 62.7 cm | 1.79 m | 7.93 m | 28.6 m |
| 46 mm | f/8 | 3.2 cm | 13.4 cm | 55.8 cm | 1.30 m | 3.94 m | 27.1 m | 14.3 m |
| 76 mm | f/1.8 | 0.2 cm | 1.1 cm | 4.4 cm | 10.1 cm | 28.4 cm | 1.15 m | 173 m |
| 76 mm | f/2.8 | 0.4 cm | 1.7 cm | 6.9 cm | 15.8 cm | 44.3 cm | 1.80 m | 111 m |
| 76 mm | f/4 | 0.5 cm | 2.4 cm | 9.9 cm | 22.5 cm | 63.4 cm | 2.59 m | 78.0 m |
| 76 mm | f/8 | 1.1 cm | 4.7 cm | 19.8 cm | 45.3 cm | 1.28 m | 5.44 m | 39.1 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
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. (NPF needs a known resolution and is omitted here.)
| Focal length | 500 rule |
|---|---|
| 9 mm (15 mm eq.) | 34.3 s |
| 12 mm (19 mm eq.) | 25.7 s |
| 15 mm (24 mm eq.) | 20.6 s |
| 22 mm (36 mm eq.) | 14.0 s |
| 31 mm (50 mm eq.) | 10.0 s |
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 |
| 123 mm | 1/200 s | 1/25 s | 1/6 s |
Lenses for the Canon EOS Rebel T3#
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 Rebel T3?
The Canon EOS Rebel T3 has a crop factor of 1.62× relative to 35 mm full frame (diagonal 26.7 mm vs 43.3 mm).
What size is the Canon EOS Rebel T3 sensor?
22.2 × 14.8 mm (APS-C (Canon)), an area of 330 mm² — 38% of full frame.
Is the Canon EOS Rebel T3 full frame?
No — its sensor is APS-C (Canon), which is 2.6× smaller in area than full frame.
What lens mount does the Canon EOS Rebel T3 use?
The Canon EOS Rebel T3 uses the Canon EF-S (flange distance 44.00 mm).
How long can I expose the night sky with the Canon EOS Rebel T3?
With a 12 mm lens (19 mm equivalent) the 500 rule gives 26 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources