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Reproduction ratio 1:1

Started 3 months ago | Discussions thread
meow
meow Veteran Member • Posts: 5,751
Re: Reproduction ratio 1:1
2

He means (he thinks) the height of a full frame sensor is about the same as the height of a US quarter.

Actually, the classic definition of macro is that the scale is at least 1:1. It has been watered down, so now many people call any closeup a macro.

It's maybe easier if you think about film. Pretend you photograph, say, a small coin at 1:1 with a film camera. Then, when you have developed the film, you can put that frame over the real life coin and you will see that the picture of the coin will cover the real coin exactly. The object has the same size (in mm or inches) on the film (or sensor) as it has in real life. That's all it means.

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