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Full Frame To APS-C Conversion:
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Full Frame To APS-C conversion calculates the equivalent focal length when using full frame lenses on APS-C sensor cameras. The APS-C sensor is smaller than full frame, resulting in a crop factor that effectively increases the apparent focal length of the lens.
The calculator uses the conversion formula:
Where:
Explanation: The crop factor of 1.5x means that the field of view of a lens on an APS-C camera will be equivalent to a lens with 1.5 times longer focal length on a full frame camera.
Details: Understanding focal length conversion is crucial for photographers who use both full frame and APS-C cameras, as it helps maintain consistent framing and composition when switching between different camera systems.
Tips: Enter the full frame focal length in millimeters. The value must be greater than 0. The calculator will provide the equivalent focal length for APS-C sensors.
Q1: Why is there a crop factor for APS-C sensors?
A: APS-C sensors are smaller than full frame sensors (approximately 23.6×15.7mm vs 36×24mm), which results in a narrower field of view for the same focal length.
Q2: Is the crop factor always 1.5x?
A: Most APS-C cameras have a crop factor of 1.5x (Nikon, Sony, Pentax) or 1.6x (Canon). This calculator uses the standard 1.5x factor.
Q3: Does this affect aperture?
A: The crop factor affects depth of field and field of view, but the actual aperture (f-stop) remains the same. The equivalent depth of field would be shallower on full frame.
Q4: Can I use full frame lenses on APS-C cameras?
A: Yes, most full frame lenses can be used on APS-C cameras, but you need to account for the crop factor to understand the effective focal length.
Q5: What about APS-C lenses on full frame cameras?
A: APS-C lenses typically cannot cover the full frame sensor area and may cause vignetting or dark corners when used on full frame cameras.