I've got an adaptor which positions the I phone behind the ocular on the scope. Seems to work fine. Only issue is with the phone camera itself. I can touch the I phone screen to focus and zoom but after don't so if I move the gun the least little bit the screen goes white and everything is out of focus. Seems like the focus and the light aperture both affected Touch the screen again and it will re-focus but again just move a fraction and the image is lost . Probably something stupid simple but it's got me stumped. This only happens when the camera is positioned on the rifle.