Here's another video I played around with yesterday trying to stabilize my iPhone 4s up against my Swarovski spotting scope. This was taken with the 25 - 50 zoom eyepiece (I find for video I get little to no vignetting). I did some minor adjustments in iMove, mostly a little cropping to take out vignetting in the upper right hand corner). http://youtu.be/dx0x1thf6zo