I'm looking at the specs for the olympus 4/3 macro lenses on B&H. Under magnification, for the 50mm f/2.0 macro, it states:
1:2 (1:1 35mm equivalent)
I thought I understood what lifesize (1:1) meant in that the image on the sensor is the same size as the real life object; therefore, 1:2 means the image on the sensor is half the size as in real life.
So, what does it mean to have a 1:1 in 35mm equvalent? Isn't lifesize on the sensor/film the same regardless of the sensor/film size? Is this some sort of marketing thing?