What is the difference between the C Series and the B Series?

The C Series is a mid-level optic, while the B Series is a high performance, elite-level optic…

B Series: Contrast, edge to edge clarity, resolution, light transmission, larger sweet spot – across the board, the B Series has a ~5-10% increase in performance. The internal optical system uses a higher grade of glass throughout the entire unit. All glass is produced in Japan. Units are produced individually and undergo a more rigorous inspection. Overall, they are larger and weightier with a magnesium frame and feel more substantial in the hands.  These compete against the best optics in the market.

C Series: Contrast, edge to edge clarity, resolution, light transmission, smaller sweet spot – across the board, the C Series has a slight decrease in performance, though still exceptional. This will be most noticeable when spending longer time behind the glass. The internal optical system uses a mix of glass grades and coatings. While the B Series are produced and built individually, the C Series is produced in the hundreds, and are sample inspected, rather than individually inspected. The polymer frame makes the C Series lighter than the B Series.

Feature B Series C Series
Weight Good Excellent
Clarity Excellent Good
Resolution Excellent Good
Light Transmission Excellent Good
Durability Excellent Good
Sweet Spot Excellent Good
Color Correction Excellent Excellent
Coatings Excellent Good
Value Excellent Excellent
Overall Performance Excellent Good


Specific features can be viewed on the
C Series and B Series specs pages.