How to create black background with iPhone?

[nogreenthumbs]

Unless you get some sort of special non-reflective vinyl, I don't see that working very well. Velvet would be better, or maybe the material that Astronomy folks use to "flock" their astronomy gear.

[rbarata]

Unless you get some sort of special non-reflective vinyl, I don't see that working very well.

I believe that using the correct angle would minimize reflections caused by a flash or window light. Just need to avoid vinyl folding when framed.
But I couldn't find vinyl so far so I might try velvet first.

[rbarata]

The farther away the background is, the farther the light has to travel to get there which means it's weaker when it gets there and whatever gets reflected back has to travel farther to get back and is again, much weaker than it started out.

To take the most advantage of this effect one must increase shutter speed which, by other hand, will minimize the porblems associated with trembling hands.

[Ray]

I went to my local hardware store and bought a cheap, spring-loaded, roll-up window blind, removed the vinyl blind, and stapled the black velvet to the tube.

Mounted on the wall, and rolled up, it's out of the way, and I can just pull it down for shots.