If the camera lens is round- Why are the images rectangular?

The traditional camera obscura has evolved to the selfie. Isn’t it? Now documenting your life has become quite easier. You can easily frame and preserve each and every moment of your life just by a single click of your finger.

But have you ever wondered that why do we get rectangular images if we have round lens? Of course, you know that camera lens is round. And the image? Is it round? No.

image

Putting an end to this curiosity

Actually, the camera doesn’t directly produce the image. Instead, the camera focuses the image on the film(in the case of the traditional camera) and on the image sensor(in the case of the newer digital camera). As the light bounces off the object, it enters the lens, which in turn, bends and focuses the image towards the film or the image sensor.

Discover more such interesting facts and the reasons behind. Why does the Indian ceiling fan have three blades?

 

The round lens serves its purpose in the best way possible by focusing. The camera makers evaluated it.(Wow!)Of course, the lens can be rectangular but round lens produced the best images. What about the film? It could have been round. But then the image would have been somewhat similar to the image that brought you here.

images

It would have limited your eyesight and would have seemed incomplete. Agree? And most of the surfaces are rectangular or square which is easier to construct. Another reason is that earlier films came in rectangular sets, you are aware of that.

Thus, the cameras followed the traditional rectangular shape along with the rectangular sensors. The round lens produces round images but those would have had irregularities or aberrations around the outer areas as compared to the inner areas. This is because light needs to bend more to reach the outer edges.

These mistakes are efficiently corrected with the help of rectangular sensors. Consequently, a round camera lens combined with rectangular sensors gives the perfect photographs by cropping out the best part of the image.

Sounds interesting!

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14 thoughts on “If the camera lens is round- Why are the images rectangular?

  • July 22, 2017 at 3:23 pm
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    It was one of the best thing I got to know today. Thanks for posting this.

    Reply
    • July 22, 2017 at 3:26 pm
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      That’s my pleasure. Happy reading!

      Reply
    • July 22, 2017 at 5:50 pm
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      Thanks for reaching out. It means a lot. Sure, I will keep you updated with new informative articles.

      Reply
  • July 22, 2017 at 5:33 pm
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    Really It’s very nice,precise and good one.

    Reply
    • July 22, 2017 at 5:45 pm
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      Thanks a lot for reading.

      Reply
    • July 22, 2017 at 5:46 pm
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      Pleasure is all mine. Happy reading! Do go through other articles too. And if you have such questions…Feel free to share it with us.

      Reply
  • July 22, 2017 at 5:45 pm
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    It’s awesome, Although I am a photographer I wasn’t aware of this dude. Will wait for your further blogs😅

    Reply
    • July 22, 2017 at 6:00 pm
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      That’s my privilege. Stay tuned. Thanks for reaching out.

      Reply
    • July 23, 2017 at 4:33 am
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      Thanks for reading! Keep visiting our site

      Reply
  • July 23, 2017 at 1:27 am
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    It’s awesome. I never thought like that. Best thing learnt.

    Reply
    • July 23, 2017 at 4:36 am
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      Thanks for reaching out. Feel free to share your queries and concerns. Happy reading!

      Reply

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