That term means nothing by itself, but since the earliest parallax adjusting scopes put the adjustment feature into the rotating objective bell of the scope, the term AO caught on. Look at the BSA AR 3-13x50mm scope and you will see the range numbers (in yards) engraved on the objective bell.
The Epson Photo Academy, operated by PG Consulting, is a specialised training platform offering world-class photography training across the broad spectrum of photography skills. Training programmes are available within the Academy for Amateur photographers and Photo Enthusiasts... [Read More...]
PPG UK scheme appoints Hewitt. The Â£162m PPG Industries UK pension scheme has appointed Hewitt to provide it with delegated consulting services. The trustees at the UK arm of the US-based industrial products supplier have set the consultant a liability-related overall investment objective and investment guidelines.