A older pentax lightseeker 30's that I saw did not seem to have the quality of a Burris Black Diamond.
Alot of changes have happened within the last several years and koshkin has stated that the Signature
and Black Diamond vs the Pentax Lightseeker series now uses the same glass. Pentax is still using
the old name for thier glass and so is burris? Bottom line is koshkin has said that the high end models
use the same glass. On the lower end pentax has some models that are inferior to Burris including a
model made in china so I would recommend to stick to Lightseker,Signature, and black Diamond scopes.
IMO they are worth the little extra money.