Specifications#
- Brand
- Agfa
- Model
- Optima 1535 Sensor
- Camera type
- Rangefinder
- Sensor size
- 69.0 × 56.0 mm
- Crop factor
- 0.49×
- Focus
- manual
- Exposure modes
- full auto or manual aperture for flash photography
- Dimensions
- 104 x 69 x 56 mm
Specifications merged from Wikipedia. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 0.49 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 |
|---|---|---|---|---|
| 21 mm | 10 mm | 117.3° | 106.3° | 129.4° |
| 23 mm | 11 mm | 112.6° | 101.2° | 125.3° |
| 28 mm | 14 mm | 101.9° | 90.0° | 115.6° |
| 32 mm | 16 mm | 94.3° | 82.4° | 108.5° |
| 35 mm | 17 mm | 89.2° | 77.3° | 103.5° |
| 45 mm | 22 mm | 75.0° | 63.8° | 89.3° |
| 55 mm | 27 mm | 64.2° | 54.0° | 77.9° |
| 63 mm | 31 mm | 57.4° | 47.9° | 70.4° |
| 80 mm | 39 mm | 46.7° | 38.6° | 58.1° |
| 90 mm | 44 mm | 41.9° | 34.6° | 52.6° |
| 110 mm | 54 mm | 34.8° | 28.6° | 44.0° |
| 120 mm | 58 mm | 32.1° | 26.3° | 40.6° |
| 150 mm | 73 mm | 25.9° | 21.1° | 33.0° |
| 180 mm | 88 mm | 21.7° | 17.7° | 27.7° |
| 250 mm | 122 mm | 15.7° | 12.8° | 20.2° |
| 350 mm | 170 mm | 11.3° | 9.1° | 14.5° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 61.6 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 |
|---|---|---|---|---|---|---|---|---|
| 44 mm | f/1.8 | 2.6 cm | 11.0 cm | 45.4 cm | 1.05 m | 3.09 m | 16.9 m | 17.5 m |
| 44 mm | f/2.8 | 4.1 cm | 17.2 cm | 71.9 cm | 1.70 m | 5.49 m | 83.4 m | 11.3 m |
| 44 mm | f/4 | 5.8 cm | 24.7 cm | 1.06 m | 2.63 m | 10.5 m | ∞ | 7.90 m |
| 44 mm | f/8 | 11.8 cm | 51.7 cm | 2.65 m | 10.4 m | ∞ | ∞ | 3.97 m |
| 89 mm | f/1.8 | 0.6 cm | 2.6 cm | 10.7 cm | 24.5 cm | 69.1 cm | 2.83 m | 71.5 m |
| 89 mm | f/2.8 | 0.9 cm | 4.0 cm | 16.7 cm | 38.2 cm | 1.08 m | 4.53 m | 46.0 m |
| 89 mm | f/4 | 1.3 cm | 5.7 cm | 23.9 cm | 54.8 cm | 1.56 m | 6.82 m | 32.2 m |
| 89 mm | f/8 | 2.6 cm | 11.4 cm | 48.3 cm | 1.12 m | 3.37 m | 19.9 m | 16.2 m |
| 151 mm | f/1.8 | 0.2 cm | 0.8 cm | 3.6 cm | 8.3 cm | 23.6 cm | 96.0 cm | 206 m |
| 151 mm | f/2.8 | 0.3 cm | 1.3 cm | 5.6 cm | 12.9 cm | 36.7 cm | 1.50 m | 132 m |
| 151 mm | f/4 | 0.4 cm | 1.8 cm | 8.0 cm | 18.5 cm | 52.6 cm | 2.15 m | 92.7 m |
| 151 mm | f/8 | 0.8 cm | 3.7 cm | 16.0 cm | 37.1 cm | 1.06 m | 4.46 m | 46.4 m |
| 249 mm | f/1.8 | 0.0 cm | 0.3 cm | 1.3 cm | 3.0 cm | 8.5 cm | 34.9 cm | 559 m |
| 249 mm | f/2.8 | 0.1 cm | 0.4 cm | 1.9 cm | 4.6 cm | 13.2 cm | 54.3 cm | 360 m |
| 249 mm | f/4 | 0.1 cm | 0.6 cm | 2.8 cm | 6.6 cm | 18.9 cm | 77.6 cm | 252 m |
| 249 mm | f/8 | 0.2 cm | 1.2 cm | 5.6 cm | 13.1 cm | 37.8 cm | 1.56 m | 126 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 |
|---|---|
| 29 mm (14 mm eq.) | 35.4 s |
| 41 mm (20 mm eq.) | 25.0 s |
| 49 mm (24 mm eq.) | 21.0 s |
| 72 mm (35 mm eq.) | 14.3 s |
| 103 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 |
|---|---|---|---|
| 49 mm | 1/25 s | 0.3 s | 1.3 s |
| 103 mm | 1/50 s | 1/6 s | 0.6 s |
| 205 mm | 1/100 s | 1/13 s | 0.3 s |
| 411 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Agfa Optima 1535 Sensor 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 × 0.49.
Frequently asked questions#
What is the crop factor of the Agfa Optima 1535 Sensor?
The Agfa Optima 1535 Sensor has a crop factor of 0.49× relative to 35 mm full frame (diagonal 88.9 mm vs 43.3 mm).
What size is the Agfa Optima 1535 Sensor sensor?
69.0 × 56.0 mm (69.0 × 56.0 mm), an area of 3864 mm² — 447% of full frame.
Is the Agfa Optima 1535 Sensor full frame?
No — its sensor is larger than full frame (medium format).
How long can I expose the night sky with the Agfa Optima 1535 Sensor?
With a 41 mm lens (20 mm equivalent) the 500 rule gives 25 s.
Sources & licences#
- Wikipedia: Agfa Optima 1535 Sensor — CC BY-SA 4.0
- Wikidata Q4692166 — CC0
Last updated October 03, 2026 · How we calculate · Sources