If there really was a scene with a scope on a bike - they would show up with 5 identical scopes. Each one would be graded for it's suitability to be the 'hero' scope and get the close-ups if needed. The 'far-away' scopes may be the ones that are slightly different from the 'hero' - maybe one is a 2ch version for example. There would be lots of emails, phone calls, and text messages amongst many people coordinating the scope. When the director sees them for the first time, he will automatically reject the first one. Props know this, so they show the director the wrong scope first so that he/she can reject it (feeding their ego in the process) and the correct scope will be 'chosen' by the director even though it was really chosen for him/her without them knowing.
Roll sound.....Roll camera.....
Filmaking is like returning to middle school in so many ways.