Magnification factors for macro lenses

[William W]

. . . Just a bit of added data:

With the focusing ring set at 0.2m distance, the magnification mark on the barrel shows as 1:1.6 **.

** On Sigma lenses, the magnification ratio is marked backasswards (image to object).

I didn't notice that comment on my first reading - that's quirky.

WW

[xpatUSA]

On Sigma lenses, the magnification ratio is marked backasswards (image to object)

I didn't notice that comment on my first reading - that's quirky.

WW

Welcome to the world of Sigma, Bill!

Their lens-mount (SA) is clock-wise to insert lens - opposite to Nikon.

Their zoom rings go backasswards (ACW for longer) to somebodies, I'm sure.

And their "resolution" is whatever Chuck Norris says it is . . .