Certified Professional Photographer (CPP) 2025 – 400 Free Practice Questions to Pass the Exam

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Question: 1 / 465

Using a crop sensor multiplier of 1.5 with a 200mm lens gives the equivalent of which lens length?

150mm

200mm

300mm

When using a crop sensor camera, the crop factor must be taken into account to determine the equivalent focal length in relation to a full-frame sensor. A crop sensor with a multiplier of 1.5 means that the effective field of view will be narrower than that of a full-frame camera.

To find the equivalent focal length when using a 200mm lens on a camera with a 1.5 crop factor, you multiply the focal length of the lens by the crop factor:

200mm × 1.5 = 300mm

This calculation shows that when using a 200mm lens on a camera with a 1.5 crop sensor multiplier, it effectively provides the field of view of a 300mm lens on a full-frame camera. Thus, the equivalent lens length is 300mm.

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400mm

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