Lens Help for a New Photographer

The Oly 45 is a great choice for you.  I recently shot pictures of my grandchild with the OMD and 45mm for indoor/outdoor and the 40-150, outdoor.

You won't find a better lens at this focal length.  The only other, slightly sharper, is the 75mm which gives you a little more distance from the subject, but it costs $900.00...

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Dan