In one scene of this season’s finale of the television series House, the only light appears to be coming from a flashlight in a character’s hand. The picture, nevertheless, is sharp and clear with a wide range of brightness and color, allowing detail to be seen even in the face of the flashlight holder, behind its beam.
Here’s a diptych of two faces. It's called “Angry Man/Neutral Woman,” and was created and copyrighted by Aude Oliva of M.I.T and Philippe G. Schyns of the University of Glasgow, in 1997. It is used here with permission.
The trend in cameras for many years has been towards smaller sizes. Small is good when you want a camera you can carry at all times in a pocket or purse. But, when it comes to image quality, in almost every case bigger is better.
Consider detail resolution. It’s often expressed in megapixels or numbers like 1920 x 1080. There doesn’t seem to be any particular size associated with either; they’re just numbers. A camera with a 4/3-inch-format sensor and one with a 1/3-inch-format sensor seem to have the same resolution if they have the same numbers.
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