LSAT 110 | Section 2 | Logical Reasoning: Q15

LR Question 15 Explanation

QUESTION TEXT: Camera manufacturers typically advertise their products…

QUESTION TYPE: Main Point

CONCLUSION: The sorts of differences in lens resolution typically advertised are irrelevant for practical photography.

REASONING: Modern lenses are so good that they project much more detail than can be reproduced in a developed image. The advertised differences in lens resolution don’t make a difference.

ANALYSIS: This is a good argument. The main point is that all lenses are so good that it doesn’t matter which one you pick.

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1. The argument has not said what camera manufacturers “should” do. It just makes a factual claim about the relevance of camera advertisements for the purposes of practical photography.
2. Not quite. The argument only mentions that difference in lens resolution are irrelevant. There might be other relevant difference (e.g. flash quality, zoom distance, etc.)
3. CORRECT. All of the lenses are so good that it hardly matter which one you choose. So the advertised differences don’t matter.
4. The manufacturers might be right to advertise lens differences. Consumers might be fooled and pay extra for a camera with a high lens resolution (even though it does not benefit them.)
5. The argument doesn’t even mention different types of film. It just says that any lens produces more detail than all types of film can display.