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It is difficult to design lenses that perform well and have a flat field at focus distances of both infinity and close up (10 x focal length or closer). Telephoto lenses are designed to perform at their best when focussed at infinity. In order to achieve 1:1 magnification one would have to get as close as 4 x focal length (sensor to subject). Most telephoto lenses won't focus that close and none perform very well at their closest possible focus.
Conversely, most macro lenses don't perform as well at infinity focus as non macro lenses. There are expensive exceptions of course that go a long way toward crossing the divide…
Cheers
Steffen.
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