what is it that makes a macro a macro lens?
A true macro can at least render a 1 to 1 ratio. That is the image on the sensor or film will be the same size as the subject. Of course when we project or blow up that image it becomes huge.
It's a: Canon Macro lens - 100 mm - F/2.8 - Canon EF with image stabilization.
A benefit I've noticed is that one does not have to be in near physical contact with his subject. An issue back in my film days with my equipment was that I was so close to the subject that it was unavoidably shaded, and light was an issue. A ring flash, however, generates enough light for one to stop down and maximize depth of field.
They are great for snapping images of people too, as one can do quite well without getting into someones face.
