<a href=showthread.php?s=&postid=8850272#post8850272 target=_blank>Originally posted</a> by afex
are you using a tripod? its the easiest way to make your pictures look instanly better. even the subtlest of movement can blur a picture when the range is extreme (either very far or very close)
as already stated, shooting perpendicular to the glass is a must.
if your pics arent as close as you'd like them, look into a lense that can go farther than 55 (i use a 18-135 for example)