It should be something that comes from your heart, something you're emotionally attached too or something that you find passion about.
Answer:
The sensor: The most obvious difference between film and digital is the sensor used to take the photo. With film cameras a film sensitive to light is placed behind the lens. When a photo is taken the shutter opens for a predetermined period of time and light hits the film. The result is a photo "printed" on the film.
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Answer: There are many types of perspective used by artists to convey a sense of space within the composition of a work, including linear perspective, one point perspective, two point perspective, and atmospheric perspective.
Explanation: