Advanced web-based calculators for photographers and cinematographers to understand their equipment's optical characteristics and performance.
Live Demo (線上使用) :
Calculate and visualize the exact field of view for different camera sensor and lens combinations.
Features:
- Comprehensive Sensor Support: From medium format to smartphone sensors (40+ formats)
- High-Precision Angular Calculations: Accurate diagonal, horizontal, and vertical FOV angles
- 35mm Equivalent Conversion: Automatic equivalent focal length and crop factor display
- Visual Representation: Graphical visualization of FOV with clear rectangular outlines
- Comparative Analysis: Compare multiple sensor/lens combinations simultaneously
- Reference Image Support: Upload images to visualize how different sensors crop a scene
- Flexible Alignment Options: Multiple alignment modes including center, bottom-left, etc.
Calculate the effective light gathering capability of a camera system based on sensor size, resolution, technology, and exposure settings.
Features:
- Comprehensive Sensor Support: From medium format to smartphone sensors
- Sensor Technology Comparison: Analysis based on sensor construction (FSI, BSI, stacked, monochrome)
- Resolution Impact Analysis: See how megapixel count affects light gathering
- Lens Transmission Calculation: Account for real-world T-stop variations between lens models
- Exposure Variables: Calculate with different apertures, shutter speeds, and ISO values
- Reference Comparison: Results normalized against a reference system (FF 24MP at f/2.8 1/60s ISO100)
- Visual Results: Graphical representation of performance in photographic stops
The tools support over 40 different sensor formats, from medium format to tiny smartphone sensors.
P.S: CMOS sensor size does not refer to diagonal line but to the size of vacuum camera tubes, which is why a '1-inch' sensor actually measures 12.8 mm x 9.6 mm, with a diagonal of 0.63'' (16mm), not corresponding to the traditional meaning of a 1-inch sensor.
| Code | Size (mm) | Name | Ratio |
|---|---|---|---|
| MF_H | 53.40 × 40.00 | Medium Format (Hasselblad H6D-100c) | 4:3 |
| MF_PH | 44.00 × 33.00 | Medium Format (Phase One, Hasselblad X1D) | 4:3 |
| MF_GFX | 43.80 × 32.90 | Medium Format (Fujifilm GFX) | 4:3 |
| FF | 36.00 × 24.00 | FullFrame | 3:2 |
| APSH | 27.90 × 18.60 | APS-H | 3:2 |
| APSC_S | 23.60 × 15.60 | APS-C (Sony, Fujifilm, Nikon) | 3:2 |
| APSC_C | 22.20 × 14.80 | APS-C Canon | 3:2 |
| 1_8in | 21.90 × 16.40 | 1.8″ | 4:3 |
| 1_7in | 20.80 × 15.60 | 1.7″ | 4:3 |
| 1_6in | 20.10 × 15.05 | 1.6″ | 4:3 |
| 1_5in | 18.70 × 14.00 | 1.5″ | 4:3 |
| 1_4in | 18.00 × 13.50 | 1.4″ | 4:3 |
| M43 | 17.30 × 13.00 | M43 | 4:3 |
| 1_2in | 16.00 × 12.00 | 1.2″ | 4:3 |
| 1_1in | 14.70 × 11.00 | 1.1″ | 4:3 |
| 1inR32 | 13.20 × 8.80 | 1″ | 3:2 |
| 1in | 12.80 × 9.60 | 1″ | 4:3 |
| 1in1_1 | 11.60 × 8.70 | 1/1.1″ | 4:3 |
| 1in1_2 | 10.67 × 8.00 | 1/1.2″ | 4:3 |
| 1in1_3 | 9.60 × 7.20 | 1/1.3″ | 4:3 |
| 1in1_4 | 8.90 × 6.67 | 1/1.4″ | 4:3 |
| 2in3 | 8.80 × 6.60 | 2/3″ | 4:3 |
| 1in1_6 | 8.00 × 6.00 | 1/1.6″ | 4:3 |
| 1in1_7 | 7.60 × 5.70 | 1/1.7″ | 4:3 |
| 1in1_8 | 7.20 × 5.40 | 1/1.8″ | 4:3 |
| 1in1_9 | 6.80 × 5.10 | 1/1.9″ | 4:3 |
| 1in2 | 6.67 × 5.00 | 1/2″ | 4:3 |
| 1in2_1 | 6.40 × 4.80 | 1/2.1″ | 4:3 |
| 1in2_2 | 6.16 × 4.62 | 1/2.2″ | 4:3 |
| 1in2_3 | 6.00 × 4.50 | 1/2.3″ | 4:3 |
| 1in2_4 | 5.90 × 4.43 | 1/2.4″ | 4:3 |
| 1in2_5 | 5.76 × 4.29 | 1/2.5″ | 4:3 |
| 1in2_6 | 5.50 × 4.10 | 1/2.6″ | 4:3 |
| 1in2_7 | 5.30 × 4.00 | 1/2.7″ | 4:3 |
| 1in2_8 | 5.10 × 3.83 | 1/2.8″ | 4:3 |
| 1in2_9 | 4.90 × 3.67 | 1/2.9″ | 4:3 |
| 1in3 | 4.80 × 3.60 | 1/3″ | 4:3 |
| 1in3_2 | 4.54 × 3.42 | 1/3.2″ | 4:3 |
| 1in3_6 | 4.00 × 3.00 | 1/3.6″ | 4:3 |
| 1in4 | 3.60 × 2.70 | 1/4″ | 4:3 |
| 1in5 | 2.88 × 2.16 | 1/5″ | 4:3 |
The calculator uses precise optical formulas to determine the exact field of view based on the relationship between the focal length and sensor dimensions. Unlike simplified approximations, this tool accounts for the actual angular geometry to provide the most accurate results possible.
The calculator uses advanced trigonometric functions to compute the precise angular field of view rather than relying on approximations. All calculations happen in real-time on the client side with no server dependencies.
When comparing multiple different sensor sizes at the same focal length (for example, all at 50mm), the resulting field of view rectangles directly represent the relative physical sizes of the sensors themselves. This provides a visually intuitive comparison of sensor sizes and their real-world impact on image framing.
For instance, adding a full-frame, APS-C, and Micro Four Thirds sensor all at 50mm to your comparison list will display rectangles that perfectly match the proportional size differences between these sensors. This makes it easy to visualize exactly how much more scene a larger sensor captures compared to a smaller one when using identical focal lengths.
This feature is particularly useful for photographers transitioning between camera systems or working with multiple camera bodies, as it clearly illustrates the practical differences in field of view without requiring complex calculations.
Contributions to improve the calculator are welcome. Please feel free to submit issues or pull requests to enhance functionality or fix bugs.