How to create black background with iPhone?

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Originally Posted by Tindomul

[FONT="Palatino linotype"]Put the subject somewhere bright and the background is considerably darker.
These pics were taken the same way, no special background. The subject was placed in the sun and the background was in the shadows. Also the subject was close to the camera, somewhat.
Masdevallia Cinnamon Twist
Masdevallia Haneczka
Masdevallia regina

Those photo are so incredible I found myself licking the monitor. I couldn't help it.

---------- Post added at 12:46 PM ---------- Previous post was at 12:44 PM ----------

Velvet works with cameras (like phone cameras) that have auto-focus, because the camera can't figure out how to focus on the velvet surface. So it defaults to focusing on the thing in front.