Why do my 100mm EF macro lens and my EF-S zoom set at 100mm appear to give a different field of view?

Question

I have a Canon EF 100mm Macro and a Canon EF-S 18-200mm Lens, and using a Canon EOS 60D.

I believed that when setting the Zoom Lens to 100mm it would show the same field of view as the one from Macro.

Turns that I was wrong. Even putting the Zoom Lens to 200mm, the field of view from the Macro Lens is "closer". But why is that?

I tried to google and just read that there should not be any differences between the EF and the EF-S model regarding the crop factor.

Here the two pictures in question (both taken from tripod):

Image 1 - 100mm Macro Lens - Exif <-- It's more zoomed in than Image 2

Image 2 - 200mm Zoom Lens - Exif

Answer

When both set to 100mm, the field of view is the same - the difference comes where the macro lens can focus much closer; which gives much higher magnification ratios of the image on the sensor.

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