The pictures look ok to me for that lens, #2 is a bit dark but still looks like a fairly good focus. Remember some or a lot of us are using good glass (lens) which makes a huge difference, also again most of us have good tripods (sturdy). These two items will effect the picture appearance even more so because we could or do use mirror lockup. Remember also any vibration problems would also be less noticeable at lower magnifications. Don't give up, practice over and over, best of luck.

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