You can change the lens,
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But not the subject under your vision.
Once you have decided the subject and made your mind, you have to explore ways to make the subject look appealing to your vision.
If you keep switching the subject, either you are an observer or a hobbyist.
Life quote from a photographer

Yes that’s how we take pictures☺️
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It is rare not to change your subject just in observation of it. A shadow, a click of a camera. And you really change it if you accidentally set you camera on it.
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