Specifications#
- Brand
- Canon
- Model
- EOS-1D Mark III
- Camera type
- DSLR
- Released
- 2007
- Lens mount
- Canon EF
- Sensor size
- 28.1 × 18.7 mm (APS-H)
- Crop factor
- 1.28×
- Resolution
- 10.1 MP (3,888 × 2,592 px)
- Continuous shooting
- 10 fps
- Sensor
- 28.1mm × 18.7mm ; (1.3x conversion factor) ; CMOS, APS-H Format ; (10.1 effective megapixels)
- Storage
- CompactFlash (Type I or Type II), Secure Digital, External Hard Drive or other USB Storage Devices.
- Viewfinder
- Optical
- AF points / area
- 45 AF points (19 cross-type and 26 Assist AF points)
- Metering
- 63-zone TTL full aperture metering
- Shutter
- Vertical-travel, mechanical, focal-plane shutter with all speeds electronically controlled
- Lens
- Interchangeable
- Successor
- Canon EOS-1D Mark IV
- Predecessor
- Canon EOS-1D Mark II N
- Drive
- 10frame/s up to 22/30/110 frames (raw+JPEG Large Fine/raw/JPEG Large Fine)
Specifications merged from Wikipedia, Wikidata, Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 1.28 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 | 10 mm | 120.7° | 98.9° | 129.3° |
| 10 mm | 13 mm | 109.1° | 86.2° | 118.7° |
| 12 mm | 15 mm | 99.0° | 75.8° | 109.2° |
| 14 mm | 18 mm | 90.2° | 67.5° | 100.6° |
| 16 mm | 21 mm | 82.6° | 60.6° | 93.1° |
| 18 mm | 23 mm | 75.9° | 54.9° | 86.3° |
| 20 mm | 26 mm | 70.2° | 50.1° | 80.3° |
| 24 mm | 31 mm | 60.7° | 42.6° | 70.2° |
| 28 mm | 36 mm | 53.3° | 36.9° | 62.2° |
| 35 mm | 45 mm | 43.7° | 29.9° | 51.5° |
| 40 mm | 51 mm | 38.7° | 26.3° | 45.8° |
| 50 mm | 64 mm | 31.4° | 21.2° | 37.3° |
| 56 mm | 72 mm | 28.2° | 19.0° | 33.5° |
| 70 mm | 90 mm | 22.7° | 15.2° | 27.1° |
| 85 mm | 109 mm | 18.8° | 12.6° | 22.5° |
| 100 mm | 128 mm | 16.0° | 10.7° | 19.2° |
| 135 mm | 173 mm | 11.9° | 7.9° | 14.3° |
| 200 mm | 256 mm | 8.0° | 5.4° | 9.6° |
| 300 mm | 385 mm | 5.4° | 3.6° | 6.4° |
| 400 mm | 513 mm | 4.0° | 2.7° | 4.8° |
| 600 mm | 769 mm | 2.7° | 1.8° | 3.2° |
| 800 mm | 1025 mm | 2.0° | 1.3° | 2.4° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 23.4 µm (the 0.030 mm full-frame standard scaled by the crop factor).
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 17 mm | f/1.8 | 7.1 cm | 29.3 cm | 1.26 m | 3.22 m | 15.4 m | ∞ | 6.88 m |
| 17 mm | f/2.8 | 11.1 cm | 46.9 cm | 2.25 m | 7.48 m | ∞ | ∞ | 4.43 m |
| 17 mm | f/4 | 16.0 cm | 70.9 cm | 4.37 m | 87.4 m | ∞ | ∞ | 3.10 m |
| 17 mm | f/8 | 34.7 cm | 2.14 m | ∞ | ∞ | ∞ | ∞ | 1.56 m |
| 34 mm | f/1.8 | 1.7 cm | 7.0 cm | 28.8 cm | 65.6 cm | 1.87 m | 8.37 m | 27.5 m |
| 34 mm | f/2.8 | 2.6 cm | 11.0 cm | 45.1 cm | 1.04 m | 3.06 m | 16.6 m | 17.7 m |
| 34 mm | f/4 | 3.8 cm | 15.7 cm | 65.3 cm | 1.53 m | 4.80 m | 46.3 m | 12.4 m |
| 34 mm | f/8 | 7.6 cm | 32.1 cm | 1.42 m | 3.75 m | 22.8 m | ∞ | 6.21 m |
| 58 mm | f/1.8 | 0.6 cm | 2.4 cm | 9.7 cm | 22.1 cm | 62.1 cm | 2.53 m | 79.9 m |
| 58 mm | f/2.8 | 0.9 cm | 3.7 cm | 15.2 cm | 34.5 cm | 97.2 cm | 4.02 m | 51.4 m |
| 58 mm | f/4 | 1.2 cm | 5.2 cm | 21.7 cm | 49.5 cm | 1.40 m | 5.99 m | 36.0 m |
| 58 mm | f/8 | 2.5 cm | 10.5 cm | 43.7 cm | 1.01 m | 2.98 m | 16.0 m | 18.0 m |
| 95 mm | f/1.8 | 0.2 cm | 0.8 cm | 3.6 cm | 8.1 cm | 22.9 cm | 92.7 cm | 214 m |
| 95 mm | f/2.8 | 0.3 cm | 1.3 cm | 5.5 cm | 12.7 cm | 35.7 cm | 1.45 m | 138 m |
| 95 mm | f/4 | 0.4 cm | 1.9 cm | 7.9 cm | 18.1 cm | 51.0 cm | 2.08 m | 96.5 m |
| 95 mm | f/8 | 0.8 cm | 3.8 cm | 15.8 cm | 36.3 cm | 1.03 m | 4.29 m | 48.3 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
Diffraction & pixel pitch#
With 7.23 µm pixels, diffraction starts to soften pixel-level detail around f/10.8. For maximum sharpness keep landscapes between f/5.9 and f/11; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 0.5 px | sharp |
| f/4 | 5.4 µm | 0.7 px | sharp |
| f/5.6 | 7.5 µm | 1.0 px | sharp |
| f/8 | 10.7 µm | 1.5 px | sharp |
| f/11 | 14.8 µm | 2.0 px | slight softening |
| f/16 | 21.5 µm | 3.0 px | slight softening |
| f/22 | 29.5 µm | 4.1 px | visibly soft |
Maximum print sizes#
At 10.1 MP the Canon EOS-1D Mark III produces 3,888 × 2,592 pixel images. See the 10 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 13.0 × 8.6 in | 33 × 22 cm |
| 240 DPI | Fine-art inkjet | 16.2 × 10.8 in | 41 × 27 cm |
| 200 DPI | Wall print | 19.4 × 13.0 in | 49 × 33 cm |
| 150 DPI | Poster, viewed from 1 m+ | 25.9 × 17.3 in | 66 × 44 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 |
|---|---|---|---|---|
| 11 mm (14 mm eq.) | 35.5 s | 25.4 s | 28.6 s | 32.4 s |
| 16 mm (21 mm eq.) | 24.4 s | 17.5 s | 19.7 s | 22.3 s |
| 19 mm (24 mm eq.) | 20.5 s | 14.7 s | 16.6 s | 18.8 s |
| 27 mm (35 mm eq.) | 14.4 s | 10.4 s | 11.7 s | 13.2 s |
| 39 mm (50 mm eq.) | 10.0 s | 7.2 s | 8.1 s | 9.1 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 |
|---|---|---|---|
| 19 mm | 1/25 s | 0.3 s | 1.3 s |
| 39 mm | 1/50 s | 1/6 s | 0.6 s |
| 78 mm | 1/100 s | 1/13 s | 0.3 s |
| 156 mm | 1/200 s | 1/25 s | 1/6 s |
Lenses for the Canon EOS-1D Mark III#
Native Canon EF lenses in our database (267 total). Also adaptable: T-mount (T2), M42 screw mount, Deckel (DKL), Tamron Adaptall, M39 / LTM (Leica thread).
- Samyang 8mm f/3.5 Fish-Eye CS 8 mm
- Samyang 10mm f/2.8 ED AS NCS CS 10 mm
- Laowa 12mm f/2.8 Zero-D 12 mm
- Samyang 12mm f/2.8 Fish-Eye ED AS NCS 12 mm
- Canon EF 14mm f/2.8L II USM 14 mm
- Samyang 14mm f/2.8 AE ED AS IF UMC 14 mm
- Samyang AF 14mm f/2.8 14 mm
- Sigma 14mm f/1.8 DG HSM | A 14 mm
- Laowa 15mm F/4 Wide Angle Macro 15 mm
- Canon EF 16-35mm f/4L IS USM 16–35 mm
- Samyang 16mm f/2.0 ED AS UMC CS 16 mm
- Samyang 20mm f/1.8 ED AS UMC 20 mm
- Canon EF 24mm f/1.4L II USM 24 mm
- Samyang 24mm f/1.4 ED AS IF UMC 24 mm
- Samyang T-S 24mm f/3.5 ED AS UMC 24 mm
- Sigma 24mm f/1.4 DG HSM | A 24 mm
- Sigma 28mm F1.4 DG HSM | Art 28 mm
- Viltrox AF 33mm f/1.4 XF 33 mm
- Sigma 40mm F1.4 DG HSM | Art 40 mm
- Canon EF 50mm f/1.8 50 mm
- Canon EF 50mm f/1.8 II 50 mm
- Canon EF 50mm f/1.8 STM 50 mm
- Viltrox AF 56mm f/1.4 XF 56 mm
- Laowa 60mm f/2.8 2X Ultra-Macro 60 mm
- Canon EF 70-200mm f/2.8L IS II USM 70–200 mm
- Sigma 70-200mm F2.8 DG OS HSM | S 70–200 mm
- Samyang 85mm f/1.4 IF UMC Aspherical 85 mm
- Sigma 100-400mm F5-6.3 DG OS HSM | C 100–400 mm
- Sigma 100-400mm f/5-6.3 DG OS HSM | C +1.4x ext. 100–400 mm
- Sigma 105 mm F1.4 DG HSM Art 105 mm
- Samyang 135mm f/2 ED UMC 135 mm
- Sigma 4.5mm f/2.8 EX DC HSM circular fisheye 4.5 mm
- Canon EF 8-15mm f/4L Fisheye USM 8–15 mm
- Sigma 8-16mm f/4.5-5.6 DC HSM 8–16 mm
- Sigma 8mm f/3.5 EX DG circular fisheye 8 mm
- Samyang XP 10mm f/3.5 10 mm
Similar cameras#
Other APS-H cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Canon EOS-1D Mark III?
The Canon EOS-1D Mark III has a crop factor of 1.28× relative to 35 mm full frame (diagonal 33.8 mm vs 43.3 mm).
What size is the Canon EOS-1D Mark III sensor?
28.1 × 18.7 mm (APS-H), an area of 525 mm² — 61% of full frame.
Is the Canon EOS-1D Mark III full frame?
No — its sensor is APS-H, which is 1.6× smaller in area than full frame.
How many megapixels does the Canon EOS-1D Mark III have?
10.1 megapixels (3,888 × 2,592 pixels), enough for a 13 × 9 inch print at 300 DPI.
What lens mount does the Canon EOS-1D Mark III use?
The Canon EOS-1D Mark III uses the Canon EF (flange distance 44.00 mm).
How long can I expose the night sky with the Canon EOS-1D Mark III?
With a 16 mm lens (21 mm equivalent) the 500 rule gives 24 s and the stricter NPF rule at f/2.8 gives 20 s.
Sources & licences#
- Wikipedia: Canon EOS-1D Mark III — CC BY-SA 4.0
- Wikidata Q63580 — CC0
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources