Crop Factor Equivalent Focal Length: 200 mm lens on 2× crop
Specific conversion page with reference context, calculator, and nearby values.
On this page
200 mm lens on 2× crop converts to
400 mm equivalent
Use this as a quick reference for Crop Factor Equivalent Focal Length.
Value Details
Input: 200 mm lens on 2× crop
Output: 400 mm equivalent
Browse all reference values for Crop Factor Equivalent Focal Length
cropFactor: 2 | equivalentAngleFactor: 0.5
Crop Factor Equivalent Focal Length Calculator
Estimate 35mm equivalent focal length (and optional equivalent aperture) from lens and crop factor.
Equivalent Focal Length
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Nearby Reference Values
| Lens Setup | Equivalent Focal Length | Crop Factor |
|---|---|---|
| 135 mm lens on 1.6× crop | 216 mm equivalent | 1.6× |
| 135 mm lens on 2× crop | 270 mm equivalent | 2× |
| 200 mm lens on 1.3× crop | 260 mm equivalent | 1.3× |
| 200 mm lens on 1.5× crop | 300 mm equivalent | 1.5× |
| 200 mm lens on 1.6× crop | 320 mm equivalent | 1.6× |
| 200 mm lens on 2× crop | 400 mm equivalent | 2× |
Frequently Asked Questions
Common questions about Crop Factor Equivalent Focal Length, formulas, and expected usage.
What is crop factor in photography?
Crop factor describes how much smaller a sensor is than full-frame and how that changes field of view for the same lens.
How do you calculate equivalent focal length?
Multiply lens focal length by crop factor to estimate full-frame equivalent focal length.
Does crop factor change actual lens focal length?
No. The physical focal length stays the same; crop factor changes how much of the image circle is captured.
Can I estimate equivalent aperture too?
For depth-of-field comparisons, photographers often multiply f-number by crop factor as an approximate full-frame equivalent.
Methodology and Review
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Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.