Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours Premium Build Quality : 16mm cage-type right-angle adjustment bracket made of aluminum alloy with overall black anodized finish, corrosion-resistant, and resistant to deformation. Precise 90° Reflection Adjustment : Mounts optical elements at a 45° angle relative to the optical axis to achieve precise 90° reflection. Provides ±3° pitch adjustment for fine-tuning alignment. High-Accuracy Drive Mechanism : Driven by an M3×0.25 adjusting screw with a resolution of 2.30 mrad per revolution enabling precise, repeatable positioning for critical optical applications. Standard Compatibility : Light inlet and outlet feature standard SM05 (0.535"-40) threaded holes, complete with retaining rings that are fully compatible with lens sleeves