Can I use this to compare lenses across different camera systems?

Yes. By entering your current lens's focal length and your camera's sensor size, you can see what focal length on a different system would give you the same field of view.

Do I need to know the crop factor of my camera to use this?

Yes. Select your camera system from the dropdown to ensure the crop factor is applied correctly.

Can I use this to compare lenses from different brands?

Yes. By entering the focal length and sensor size of your current lens and the equivalent you are considering, the calculator tells you the effective focal length and field of view.

Photography & VideoTool Review

Crop Factor Calculator

Provided byOmni Calculatoromnicalculator.com

The crop factor calculator tells you the effective focal length and aperture f-stop of your camera in terms of standa...

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About this tool

What Crop Factor Calculator does

A concise, single-paragraph summary of the tool's purpose and value, written in a professional yet accessible tone. It should read naturally, without bullet points or markdown formatting, and convey the utility of the calculator for photographers evaluating lens choices or sensor performance across different camera systems. The tone should be objective, concise, and focused on practical utility for a photographer evaluating their gear or workflow.

Step by step

How to use the Omni Calculator Crop Factor Calculator

1
Select your camera sensor size from the dropdown menu (e.g., Full-frame, APS-C, Micro Four Thirds).
2
Enter your lens's focal length (e.g., 50mm) and maximum aperture (e.g., f/1.8).
3
The calculator will instantly display the equivalent focal length and aperture on a full-frame camera.
4
Use this tool to compare depth of field, field of view, and light-gathering ability across different sensor formats.

Is it right for you

Best for

Photographers and enthusiasts who want to understand how a lens will perform on a different sensor size, or compare systems without buying new gear.

Limitations

Assumes ideal lens performance; real-world results may vary based on specific lens design and coatings.
Actual field of view may vary slightly based on the exact camera model and sensor size.

Questions

Crop Factor Calculator FAQ

Can I use this to compare lenses across different camera systems?: Yes. By entering your current lens's focal length and your camera's sensor size, you can see what focal length on a different system would give you the same field of view.
Do I need to know the crop factor of my camera to use this?: Yes. Select your camera system from the dropdown to ensure the crop factor is applied correctly.
Can I use this to compare lenses from different brands?: Yes. By entering the focal length and sensor size of your current lens and the equivalent you are considering, the calculator tells you the effective focal length and field of view.

Other Options

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01
Number Convert
numberconvert.com
Calculate your crop factor with our free online tool. Get accurate results instantly. No signup required.

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