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Calculate equivalent focal length across different camera sensor sizes
Full Frame Equivalent
75.0mm
Formula: Equivalent = Focal Length × Crop Factor
| Focal Length | Full Frame | APS-C (1.5x) | APS-C Canon | MFT (2.0x) | Medium Format |
|---|---|---|---|---|---|
| 14mm | 14mm | 21mm | 22.4mm | 28mm | 11.1mm |
| 24mm | 24mm | 36mm | 38.4mm | 48mm | 19mm |
| 35mm | 35mm | 52.5mm | 56mm | 70mm | 27.7mm |
| 50mm | 50mm | 75mm | 80mm | 100mm | 39.5mm |
| 85mm | 85mm | 127.5mm | 136mm | 170mm | 67.2mm |
| 100mm | 100mm | 150mm | 160mm | 200mm | 79mm |
| 135mm | 135mm | 202.5mm | 216mm | 270mm | 106.7mm |
| 200mm | 200mm | 300mm | 320mm | 400mm | 158mm |
Crop factor is a crucial concept in digital photography that affects how your lenses perform on different camera sensors. Understanding crop factor helps you choose the right lens for your needs.
Crop factor is the ratio of a camera sensor's size compared to a 35mm full-frame sensor. It determines how much of the image circle projected by the lens is actually captured by the sensor.
A 50mm lens on an APS-C camera (1.5x crop) provides the same field of view as a 75mm lens on full frame. This makes crop sensors excellent for wildlife photography but challenging for ultra-wide landscape shots. Understanding these equivalents helps you choose the right gear.
No, crop factor does not change the physical aperture or f-stop of a lens. However, to achieve the same depth of field at an equivalent field of view, you would need to adjust your aperture.
Yes, full-frame lenses work perfectly on crop sensor cameras. The crop factor will apply, giving you a narrower field of view. However, crop sensor lenses may not cover the entire full-frame sensor and can cause vignetting.
Not necessarily. While larger sensors offer advantages like better low-light performance and shallower depth of field, smaller sensors provide benefits such as more compact gear, extended reach for telephoto work, and greater depth of field for macro photography.
Multiply the lens focal length by the crop factor. For example, a 35mm lens on a 1.6x crop sensor gives you a 56mm equivalent field of view (35 × 1.6 = 56).
Medium format sensors are larger than full-frame 35mm sensors, so they capture a wider field of view. A crop factor of 0.79x means the sensor is about 1.27 times larger than full frame, providing a wider angle of view at the same focal length.