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Answer (Detailed Solution Below)

Option 4 : The crop body shows a narrower field of view, equivalent to 75 mm

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Detailed Solution

सही उत्तर The crop body shows a narrower field of view, equivalent to 75 mm है।

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PrepSnapprepsnap.in • Part -A

Question:

A 50 mm lens is used on a full-frame body and on an APS-C body with a 1.5x crop factor. Which statement is correct? / 50 mm लेंस का उपयोग फुल-फ्रेम बॉडी और 1.5x क्रॉप फैक्टर वाली APS-C बॉडी पर किया जाता है। कौन-सा कथन सही है?

1.
Both bodies record the same field of view
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The full-frame body shows a narrower field
3.
The crop body increases the lens's true focal length
4.
The crop body shows a narrower field of view, equivalent to 75 mm

Correct Answer: The crop body shows a narrower field of view, equivalent to 75 mm

The crop factor multiplies the effective field of view: $50 \times 1.5 = 75$ mm equivalent, so the APS-C body records a narrower field. The lens's true focal length does not change. / क्रॉप फैक्टर प्रभावी फील्ड ऑफ व्यू को गुणा करता है: $50 \times 1.5 = 75$ mm समतुल्य, इसलिए APS-C बॉडी संकरा फील्ड रिकॉर्ड करती है। लेंस की वास्तविक फोकल लंबाई नहीं बदलती।

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