Myths of Conditional Alignment

In the Introduction video below, we address “conditional alignment”, which refers to a binocular that is well-aligned only at one IPD setting. There is a myth perpetuated online that if binocular alignment is performed without the use of a collimator, it will only be aligned at the user’s own IPD setting. This is possible, but unlikely. We demonstrate that it is possible to determine alignment across the entire IPD range without the use of special equipment.

Using Oberwerk's 11" Collimator for Tail-of-Arc Alignment

Using Oberwerk’s 11″ Collimator for Tail-of-Arc Alignment

Oberwerk has an in-house collimator, which we use to re-align binoculars that have had prisms removed/replaced. But you don’t need a collimator to determine whether or not a binocular is properly collimated. In this set of videos, we show what to look for when checking binocular alignment.

Myths of Conditional Alignment, Part 1  What is conditional alignment? What is true collimation? Why minor collimation adjustments do not cause conditional alignment.
Myths of Conditional Alignment, Part 2  How to insure that your binoculars are not conditionally aligned, but are perfectly aligned throughout the IPD range- no special equipment required. How to determine if a binocular needs repair before attempting collimation.