Specifications#
- Brand
- Contax
- Model
- N Digital
- Camera type
- DSLR
- Sensor size
- 36.0 × 24.0 mm (Full frame (35 mm))
- Crop factor
- 1.00×
- Resolution
- 6 MP (3,040 × 2,008 px)
- Sensor
- Philips 6 MP CCD
- Storage
- Compact Flash (Type I or II)
- Metering
- Multi-Segment, Center weighted, Spot
- Battery
- 1.5V AA x 4
- Lens
- Contax N-mount
Specifications merged from Wikipedia, Wikidata and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 1.00 to get the full-frame field of view. For fixed-lens cameras use the real focal length printed on the lens (e.g. “6.1–18.3 mm”), not the 35 mm equivalent.
| Lens on this camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 10 mm | 10 mm | 121.9° | 100.4° | 130.4° |
| 12 mm | 12 mm | 112.6° | 90.0° | 122.0° |
| 14 mm | 14 mm | 104.3° | 81.2° | 114.2° |
| 16 mm | 16 mm | 96.7° | 73.7° | 107.0° |
| 18 mm | 18 mm | 90.0° | 67.4° | 100.5° |
| 20 mm | 20 mm | 84.0° | 61.9° | 94.5° |
| 24 mm | 24 mm | 73.7° | 53.1° | 84.1° |
| 28 mm | 28 mm | 65.5° | 46.4° | 75.4° |
| 35 mm | 35 mm | 54.4° | 37.8° | 63.4° |
| 40 mm | 40 mm | 48.5° | 33.4° | 56.8° |
| 50 mm | 50 mm | 39.6° | 27.0° | 46.8° |
| 56 mm | 56 mm | 35.6° | 24.2° | 42.2° |
| 70 mm | 70 mm | 28.8° | 19.5° | 34.3° |
| 85 mm | 85 mm | 23.9° | 16.1° | 28.6° |
| 100 mm | 100 mm | 20.4° | 13.7° | 24.4° |
| 135 mm | 135 mm | 15.2° | 10.2° | 18.2° |
| 200 mm | 200 mm | 10.3° | 6.9° | 12.3° |
| 300 mm | 300 mm | 6.9° | 4.6° | 8.2° |
| 400 mm | 400 mm | 5.2° | 3.4° | 6.2° |
| 600 mm | 600 mm | 3.4° | 2.3° | 4.1° |
| 800 mm | 800 mm | 2.6° | 1.7° | 3.1° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 30.0 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 |
|---|---|---|---|---|---|---|---|---|
| 22 mm | f/1.8 | 5.3 cm | 22.1 cm | 92.8 cm | 2.24 m | 8.03 m | ∞ | 8.98 m |
| 22 mm | f/2.8 | 8.4 cm | 35.0 cm | 1.56 m | 4.23 m | 34.1 m | ∞ | 5.78 m |
| 22 mm | f/4 | 12.0 cm | 51.5 cm | 2.58 m | 9.74 m | ∞ | ∞ | 4.06 m |
| 22 mm | f/8 | 25.1 cm | 1.27 m | 103 m | ∞ | ∞ | ∞ | 2.04 m |
| 43 mm | f/1.8 | 1.3 cm | 5.6 cm | 22.9 cm | 52.2 cm | 1.48 m | 6.35 m | 34.3 m |
| 43 mm | f/2.8 | 2.1 cm | 8.7 cm | 35.8 cm | 82.1 cm | 2.37 m | 11.4 m | 22.1 m |
| 43 mm | f/4 | 3.0 cm | 12.5 cm | 51.6 cm | 1.20 m | 3.59 m | 22.2 m | 15.5 m |
| 43 mm | f/8 | 6.0 cm | 25.2 cm | 1.09 m | 2.70 m | 11.0 m | ∞ | 7.75 m |
| 73 mm | f/1.8 | 0.4 cm | 1.9 cm | 7.8 cm | 17.8 cm | 50.1 cm | 2.03 m | 98.8 m |
| 73 mm | f/2.8 | 0.7 cm | 2.9 cm | 12.2 cm | 27.7 cm | 78.1 cm | 3.21 m | 63.5 m |
| 73 mm | f/4 | 1.0 cm | 4.2 cm | 17.4 cm | 39.7 cm | 1.12 m | 4.71 m | 44.5 m |
| 73 mm | f/8 | 1.9 cm | 8.4 cm | 35.0 cm | 80.5 cm | 2.33 m | 11.2 m | 22.3 m |
| 120 mm | f/1.8 | 0.1 cm | 0.7 cm | 2.8 cm | 6.5 cm | 18.3 cm | 74.2 cm | 267 m |
| 120 mm | f/2.8 | 0.2 cm | 1.0 cm | 4.4 cm | 10.1 cm | 28.5 cm | 1.16 m | 172 m |
| 120 mm | f/4 | 0.3 cm | 1.5 cm | 6.3 cm | 14.4 cm | 40.7 cm | 1.66 m | 120 m |
| 120 mm | f/8 | 0.6 cm | 2.9 cm | 12.5 cm | 28.9 cm | 81.9 cm | 3.39 m | 60.1 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 11.84 µm pixels, diffraction starts to soften pixel-level detail around f/17.6. For maximum sharpness keep landscapes between f/9.7 and f/18; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 0.3 px | sharp |
| f/4 | 5.4 µm | 0.5 px | sharp |
| f/5.6 | 7.5 µm | 0.6 px | sharp |
| f/8 | 10.7 µm | 0.9 px | sharp |
| f/11 | 14.8 µm | 1.2 px | sharp |
| f/16 | 21.5 µm | 1.8 px | sharp |
| f/22 | 29.5 µm | 2.5 px | slight softening |
Maximum print sizes#
At 6 MP the Contax N Digital produces 3,040 × 2,008 pixel images. See the 6 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 10.1 × 6.7 in | 26 × 17 cm |
| 240 DPI | Fine-art inkjet | 12.7 × 8.4 in | 32 × 21 cm |
| 200 DPI | Wall print | 15.2 × 10.0 in | 39 × 26 cm |
| 150 DPI | Poster, viewed from 1 m+ | 20.3 × 13.4 in | 51 × 34 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 |
|---|---|---|---|---|
| 14 mm (14 mm eq.) | 35.7 s | 29.9 s | 32.4 s | 35.4 s |
| 20 mm (20 mm eq.) | 25.0 s | 20.9 s | 22.7 s | 24.8 s |
| 24 mm (24 mm eq.) | 20.8 s | 17.4 s | 18.9 s | 20.6 s |
| 35 mm (35 mm eq.) | 14.3 s | 12.0 s | 13.0 s | 14.2 s |
| 50 mm (50 mm eq.) | 10.0 s | 8.4 s | 9.1 s | 9.9 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 |
|---|---|---|---|
| 24 mm | 1/25 s | 0.3 s | 1.3 s |
| 50 mm | 1/50 s | 1/6 s | 0.6 s |
| 100 mm | 1/100 s | 1/13 s | 0.3 s |
| 200 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Contax N Digital has a built-in, non-interchangeable lens. Use the real focal length of that lens with the tables above; its full-frame equivalent is that number × 1.00.
Similar cameras#
Other Full frame (35 mm) cameras from around the same time.
- Canon EOS-1Ds 2002
- Sony Alpha 900 2008
- Leica SL (Typ 601) 2015
- Sony α7R II 2015
- Sony α7S II 2015
- Ricoh Pentax K-1 2016
- Canon EOS R 2018
- Nikon Z6 2018
- Nikon Z7 2018
- Canon EOS RP 2019
- Sigma fp 2019
- Sony α7R IV 2019
Frequently asked questions#
What is the crop factor of the Contax N Digital?
The Contax N Digital has a crop factor of 1.00× relative to 35 mm full frame (diagonal 43.3 mm vs 43.3 mm).
What size is the Contax N Digital sensor?
36.0 × 24.0 mm (Full frame (35 mm)), an area of 864 mm² — 100% of full frame.
Is the Contax N Digital full frame?
Yes — its sensor is the same 36 × 24 mm size as 35 mm film.
How many megapixels does the Contax N Digital have?
6 megapixels (3,040 × 2,008 pixels), enough for a 10 × 7 inch print at 300 DPI.
How long can I expose the night sky with the Contax N Digital?
With a 20 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 23 s.
Sources & licences#
- Wikipedia: Contax N Digital — CC BY-SA 4.0
- Wikidata Q5164925 — CC0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources