Specifications#
- Brand
- Rollei
- Model
- 2.8E
- Camera type
- Medium-format digital
- Lens mount
- Rollei 6×6 (SL66/SLX)
- Sensor size
- 70.6 × 47.1 mm
- Crop factor
- 0.51×
Specifications merged from Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 0.51 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 |
|---|---|---|---|---|
| 21 mm | 11 mm | 118.5° | 96.5° | 127.3° |
| 23 mm | 12 mm | 113.8° | 91.3° | 123.1° |
| 28 mm | 14 mm | 103.1° | 80.1° | 113.1° |
| 32 mm | 16 mm | 95.6° | 72.7° | 105.9° |
| 35 mm | 18 mm | 90.5° | 67.8° | 100.9° |
| 45 mm | 23 mm | 76.2° | 55.2° | 86.6° |
| 55 mm | 28 mm | 65.4° | 46.3° | 75.3° |
| 63 mm | 32 mm | 58.5° | 41.0° | 67.9° |
| 80 mm | 41 mm | 47.6° | 32.8° | 55.9° |
| 90 mm | 46 mm | 42.8° | 29.3° | 50.5° |
| 110 mm | 56 mm | 35.6° | 24.1° | 42.2° |
| 120 mm | 61 mm | 32.8° | 22.2° | 38.9° |
| 150 mm | 76 mm | 26.5° | 17.8° | 31.6° |
| 180 mm | 92 mm | 22.2° | 14.9° | 26.5° |
| 250 mm | 127 mm | 16.1° | 10.8° | 19.3° |
| 350 mm | 178 mm | 11.5° | 7.7° | 13.8° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 58.8 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 |
|---|---|---|---|---|---|---|---|---|
| 42 mm | f/1.8 | 2.8 cm | 11.5 cm | 47.7 cm | 1.10 m | 3.27 m | 18.6 m | 16.7 m |
| 42 mm | f/2.8 | 4.3 cm | 18.0 cm | 75.7 cm | 1.79 m | 5.89 m | 137 m | 10.8 m |
| 42 mm | f/4 | 6.1 cm | 26.0 cm | 1.12 m | 2.80 m | 11.8 m | ∞ | 7.54 m |
| 42 mm | f/8 | 12.4 cm | 54.7 cm | 2.87 m | 12.6 m | ∞ | ∞ | 3.79 m |
| 85 mm | f/1.8 | 0.6 cm | 2.7 cm | 11.2 cm | 25.7 cm | 72.4 cm | 2.97 m | 68.3 m |
| 85 mm | f/2.8 | 0.9 cm | 4.2 cm | 17.5 cm | 40.0 cm | 1.13 m | 4.76 m | 43.9 m |
| 85 mm | f/4 | 1.4 cm | 6.0 cm | 25.0 cm | 57.5 cm | 1.64 m | 7.21 m | 30.8 m |
| 85 mm | f/8 | 2.7 cm | 12.0 cm | 50.7 cm | 1.18 m | 3.57 m | 22.2 m | 15.4 m |
| 144 mm | f/1.8 | 0.2 cm | 0.9 cm | 3.8 cm | 8.8 cm | 24.8 cm | 1.01 m | 196 m |
| 144 mm | f/2.8 | 0.3 cm | 1.4 cm | 5.9 cm | 13.6 cm | 38.6 cm | 1.58 m | 126 m |
| 144 mm | f/4 | 0.4 cm | 1.9 cm | 8.4 cm | 19.5 cm | 55.3 cm | 2.27 m | 88.3 m |
| 144 mm | f/8 | 0.8 cm | 3.9 cm | 16.9 cm | 39.1 cm | 1.12 m | 4.71 m | 44.2 m |
| 238 mm | f/1.8 | 0.0 cm | 0.3 cm | 1.3 cm | 3.1 cm | 8.9 cm | 36.5 cm | 535 m |
| 238 mm | f/2.8 | 0.1 cm | 0.4 cm | 2.0 cm | 4.8 cm | 13.8 cm | 56.8 cm | 344 m |
| 238 mm | f/4 | 0.1 cm | 0.6 cm | 2.9 cm | 6.9 cm | 19.8 cm | 81.2 cm | 241 m |
| 238 mm | f/8 | 0.2 cm | 1.3 cm | 5.9 cm | 13.8 cm | 39.6 cm | 1.63 m | 121 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 |
|---|---|
| 27 mm (14 mm eq.) | 36.3 s |
| 39 mm (20 mm eq.) | 25.1 s |
| 47 mm (24 mm eq.) | 20.9 s |
| 69 mm (35 mm eq.) | 14.2 s |
| 98 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 |
|---|---|---|---|
| 47 mm | 1/25 s | 0.3 s | 1.3 s |
| 98 mm | 1/50 s | 1/6 s | 0.6 s |
| 196 mm | 1/100 s | 1/13 s | 0.3 s |
| 392 mm | 1/200 s | 1/25 s | 1/6 s |
Frequently asked questions#
What is the crop factor of the Rollei 2.8E?
The Rollei 2.8E has a crop factor of 0.51× relative to 35 mm full frame (diagonal 84.8 mm vs 43.3 mm).
What size is the Rollei 2.8E sensor?
70.6 × 47.1 mm (70.6 × 47.1 mm), an area of 3322 mm² — 384% of full frame.
Is the Rollei 2.8E full frame?
No — its sensor is larger than full frame (medium format).
What lens mount does the Rollei 2.8E use?
The Rollei 2.8E uses the Rollei 6×6 (SL66/SLX) (flange distance 74.00 mm).
How long can I expose the night sky with the Rollei 2.8E?
With a 39 mm lens (20 mm equivalent) the 500 rule gives 25 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources