Originally posted by: fuzzybabybunny
Hate the break it to ya, but the lens is most likely not a true macro. True macro is defined as a 1:1 magnification, meaning the image projected on the sensor by the lens is the same size as the object in real life. So the image of a 5mm long fly would actually be 5mm long as projected on the sensor. Some manufacturers have this thing going where they slap "macro" on a lens that can only do 1:2 magnification, meaning a 5mm long fly would be 2.5mm on the image sensor, so not as much magnification as 1:1. Basically it's not a true macro lens. The Sigma 70-300mm Macro does this. The 70-210mm is going to very likely do this as well. Generally, true macros are never zooms, with the exception of the Canon MP-E 65mm and probably a few other specialty lenses here and there.
But for $20, whatever.
Originally posted by: astroidea
70-210 is a pretty fun starter lens to play with, especially at that price.
But for true budget macro, I would recommend just getting any normal cheap prime, and getting extension tubes for it.
Make sure you use flash for your really close up macros, so you can use a small aperture.
Here's two I did with the 50mm F/1.4 with a set of extension tubes..
ants
beetle