Mirror Mounts Precision Center Mirror Mount,12.7mm to 50.8mm Diameter, 3 Knob Adjustment Precision Gimbal Optic Mount,52mm and 40mm Diameter,±3 ° Fine Range Precision Gimbal Optic Mount,52mm Diameter. Single Indexed Filter Wheel Mount, Holds Six 1.0 in. (25.4 mm) Diameter Filters Single Indexed Filter Wheel Mount, Holds Twelve 1.0 in. (25.4 mm) Diameter Filters Filter Wheel Mount , Does Not Include Filter Wheels Adjustable Cylindrical Lens Mount, 65mm Max Optic, 10mm Max Thickness Variable Lens Holder, 100mm Max Diameter Prism Mount, 60mm Max Diameter,±5 ° Ultra-High Stability Optical Mount 45 degree Mirror Adaptor LM Industrial Mirror Mount