3Nov/090
Better Borescope Measurements
Over the years there have been many methods of conducting remote visual inspection measurements with the use of a video borescope. Unfortunately, some of these methods are frequently confusing and may lead to inaccurate borescope measurement due to lack of training or improper use.
Source: http://www.ndtmag.com/Articles/Web_Exclusives/BNP_GUID_9-5-2006_A_10000000000000693082