Specifications#
- Brand
- Sigma
- Model
- DP1 Merrill
- Camera type
- Compact
- Released
- 2012-01-01
- Sensor size
- 23.5 × 15.7 mm (APS-C)
- Crop factor
- 1.53×
- Resolution
- 14.8 MP (4,704 × 3,136 px)
- Continuous shooting
- 4 fps
- Weight
- 360 g (12.7 oz)
- Sensor
- 23.5 mm × 15.7 mm Foveon X3 Sensor CMOS
- Storage
- SD card
- Viewfinder
- none
- AF points / area
- Contrast Detect AF
- Metering
- TTL Full Aperture Metering
- Exposure modes
- Program AE [P], Shutter Priority AE [S], Aperture Priority AE [Ae], Manual [M]
- Shutter
- Electronically controlled lens shutter
- Flash
- Hotshoe
- Battery
- Lithium Ion battery BP-41
- Dimensions
- 121.5 × 66.7 × 64.3 mm
- Lens
- 19 mm (35 mm equivalent 28 mm) f/2.8
- Drive
- 4 frames per second at full quality, up to 5 fps at lower quality
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 1.53 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 |
|---|---|---|---|---|
| 8 mm | 12 mm | 111.5° | 88.9° | 121.0° |
| 10 mm | 15 mm | 99.2° | 76.3° | 109.4° |
| 12 mm | 18 mm | 88.8° | 66.4° | 99.3° |
| 14 mm | 21 mm | 80.0° | 58.6° | 90.5° |
| 16 mm | 24 mm | 72.6° | 52.3° | 82.9° |
| 18 mm | 28 mm | 66.3° | 47.1° | 76.3° |
| 20 mm | 31 mm | 60.9° | 42.9° | 70.5° |
| 24 mm | 37 mm | 52.2° | 36.2° | 61.0° |
| 28 mm | 43 mm | 45.5° | 31.3° | 53.6° |
| 35 mm | 54 mm | 37.1° | 25.3° | 44.0° |
| 40 mm | 61 mm | 32.7° | 22.2° | 38.9° |
| 50 mm | 77 mm | 26.4° | 17.8° | 31.6° |
| 56 mm | 86 mm | 23.7° | 16.0° | 28.3° |
| 70 mm | 107 mm | 19.1° | 12.8° | 22.8° |
| 85 mm | 130 mm | 15.7° | 10.6° | 18.9° |
| 100 mm | 153 mm | 13.4° | 9.0° | 16.1° |
| 135 mm | 207 mm | 9.9° | 6.7° | 12.0° |
| 200 mm | 306 mm | 6.7° | 4.5° | 8.1° |
| 300 mm | 459 mm | 4.5° | 3.0° | 5.4° |
| 400 mm | 612 mm | 3.4° | 2.2° | 4.0° |
| 600 mm | 919 mm | 2.2° | 1.5° | 2.7° |
| 800 mm | 1225 mm | 1.7° | 1.1° | 2.0° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 19.6 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 | 8.8 cm | 36.6 cm | 1.64 m | 4.53 m | 46.1 m | ∞ | 5.57 m |
| 14 mm | f/2.8 | 13.9 cm | 59.8 cm | 3.22 m | 16.6 m | ∞ | ∞ | 3.59 m |
| 14 mm | f/4 | 20.2 cm | 93.4 cm | 8.61 m | ∞ | ∞ | ∞ | 2.51 m |
| 14 mm | f/8 | 45.8 cm | 4.17 m | ∞ | ∞ | ∞ | ∞ | 1.26 m |
| 28 mm | f/1.8 | 2.1 cm | 8.8 cm | 35.8 cm | 81.7 cm | 2.35 m | 11.2 m | 22.3 m |
| 28 mm | f/2.8 | 3.3 cm | 13.7 cm | 56.3 cm | 1.30 m | 3.96 m | 27.2 m | 14.3 m |
| 28 mm | f/4 | 4.7 cm | 19.6 cm | 82.1 cm | 1.96 m | 6.60 m | 3.3 km | 10.0 m |
| 28 mm | f/8 | 9.5 cm | 40.4 cm | 1.87 m | 5.51 m | 860 m | ∞ | 5.03 m |
| 48 mm | f/1.8 | 0.7 cm | 2.9 cm | 12.0 cm | 27.2 cm | 76.3 cm | 3.12 m | 65.4 m |
| 48 mm | f/2.8 | 1.1 cm | 4.5 cm | 18.6 cm | 42.4 cm | 1.20 m | 5.02 m | 42.0 m |
| 48 mm | f/4 | 1.5 cm | 6.5 cm | 26.7 cm | 60.9 cm | 1.73 m | 7.65 m | 29.4 m |
| 48 mm | f/8 | 3.1 cm | 13.0 cm | 54.1 cm | 1.26 m | 3.80 m | 25.0 m | 14.7 m |
| 78 mm | f/1.8 | 0.2 cm | 1.1 cm | 4.5 cm | 10.2 cm | 28.6 cm | 1.15 m | 173 m |
| 78 mm | f/2.8 | 0.4 cm | 1.7 cm | 6.9 cm | 15.8 cm | 44.5 cm | 1.80 m | 111 m |
| 78 mm | f/4 | 0.5 cm | 2.4 cm | 9.9 cm | 22.6 cm | 63.7 cm | 2.60 m | 77.7 m |
| 78 mm | f/8 | 1.1 cm | 4.8 cm | 19.9 cm | 45.4 cm | 1.29 m | 5.47 m | 38.9 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 5.00 µm pixels, diffraction starts to soften pixel-level detail around f/7.4. For maximum sharpness keep landscapes between f/4.1 and f/7; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 0.8 px | sharp |
| f/4 | 5.4 µm | 1.1 px | sharp |
| f/5.6 | 7.5 µm | 1.5 px | sharp |
| f/8 | 10.7 µm | 2.1 px | slight softening |
| f/11 | 14.8 µm | 3.0 px | slight softening |
| f/16 | 21.5 µm | 4.3 px | visibly soft |
| f/22 | 29.5 µm | 5.9 px | visibly soft |
Maximum print sizes#
At 14.8 MP the Sigma DP1 Merrill produces 4,704 × 3,136 pixel images. See the 14 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 15.7 × 10.5 in | 40 × 27 cm |
| 240 DPI | Fine-art inkjet | 19.6 × 13.1 in | 50 × 33 cm |
| 200 DPI | Wall print | 23.5 × 15.7 in | 60 × 40 cm |
| 150 DPI | Poster, viewed from 1 m+ | 31.4 × 20.9 in | 80 × 53 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.) | 36.3 s | 23.7 s | 27.5 s | 32.2 s |
| 13 mm (20 mm eq.) | 25.1 s | 16.4 s | 19.1 s | 22.3 s |
| 16 mm (24 mm eq.) | 20.4 s | 13.3 s | 15.5 s | 18.1 s |
| 23 mm (35 mm eq.) | 14.2 s | 9.3 s | 10.8 s | 12.6 s |
| 33 mm (51 mm eq.) | 9.9 s | 6.5 s | 7.5 s | 8.8 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 |
|---|---|---|---|
| 16 mm | 1/25 s | 0.3 s | 1.3 s |
| 33 mm | 1/50 s | 1/6 s | 0.6 s |
| 65 mm | 1/100 s | 1/13 s | 0.3 s |
| 131 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Sigma DP1 Merrill 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 × 1.53.
Similar cameras#
Other APS-C cameras from around the same time.
- Nikon D7100 2013
- Pentax K-3 2013
- Samsung Galaxy NX 2013
- Sony Alpha 58 2013
- Sony Alpha 65 2011
- Sony Alpha 77 II 2014
- Nikon D7000 2010
- Pentax K-5 2010
- Fujifilm X-E1 2012
- Nikon D3200 2012
- Nikon D5200 2012
- Sony Alpha 37 2012
Frequently asked questions#
What is the crop factor of the Sigma DP1 Merrill?
The Sigma DP1 Merrill has a crop factor of 1.53× relative to 35 mm full frame (diagonal 28.3 mm vs 43.3 mm).
What size is the Sigma DP1 Merrill sensor?
23.5 × 15.7 mm (APS-C), an area of 369 mm² — 43% of full frame.
Is the Sigma DP1 Merrill full frame?
No — its sensor is APS-C, which is 2.3× smaller in area than full frame.
How many megapixels does the Sigma DP1 Merrill have?
14.8 megapixels (4,704 × 3,136 pixels), enough for a 16 × 10 inch print at 300 DPI.
How long can I expose the night sky with the Sigma DP1 Merrill?
With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 19 s.
Sources & licences#
- Wikipedia: Sigma DP1 Merrill — CC BY-SA 4.0
- Wikidata Q18358535 — 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