20 BAF Clear Rectangular Cruising Prism This 20 BAF (Basal Area Factor) prism is a clear rectangular prism accurate to ±1% of rated BAF. This Rectangular Prism gives a narrow-sharp image for good results in dense timber. Clear glass prisms...

15 BAF Clear Rectangular Cruising Prism This 15 BAF (Basal Area Factor) prism is a clear rectangular prism accurate to ±1% of rated BAF. This Rectangular Prism gives a narrow-sharp image for good results in dense timber. Clear glass prisms...