I would not skip on the 50mm Prime and Gresch mentioned it too. If you can take good decent pictures using that lens, then move on to the more expensive lenses. A fast 50mm is a great great lens and a must have.

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Another lame attempt to get to 2000 posts
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2017 Tesla Model X
2014 Porsche Panamera-S e-Hybrid (sold)
2012 Porsche Cayenne
2001 X5 3.0 (sold)
2003 Carrera 911 Cabrio (sold)