Fisheye and rubber sheet are common magnifying methods in information visualization. In this paper, we present two experiments about their performance in AR scenarios: visual search and fine motor manipulation. Also, a baseline test without any magnification will be conducted as a reference. Users finish some tasks with a restricted region of interest and we evaluate the result based on time to completion and accuracy. Our results show that visual distortion of different magnifiers does not have significant debuff on visual search and fine motor skills. These results can be a reference to projects that need enhancement of visualization in AR.