


| Lens: | Sirui 35mm T2.9 1.6x | Sirui 50mm T2.9 1.6x | Sirui 75mm T2.9 1.6x |
| Lens Format Coverage: | Full Frame | Full Frame | Full Frame |
| Focal Length: | 35mm | 50mm | 75mm |
| Aperture: | T2.9 - T16 | T2.9 - T16 | T2.9 - T16 |
| Lens Structure: | 18 Elements in 13 Groups (Included One Aspheric Lens) | 17 Elements in 12 Groups (Included One Aspheric Lens) | 15 Elements in 11 Groups (Included One Aspheric Lens) |
| Aperture Blades: | 10 | 10 | 14 |
| Shooting Distance: | 3ft (0.9m) - ∞ | 3ft (0.9m) - ∞ | 3ft (0.9m) - ∞ |
| Filter Spec: | M58 x 0.75 | M62 x 0.75 | M62 x 0.75 |
| Rotation Angle of Focus Ring: | 120° | 120° | 120° |
| Max Diameter: | 66.8mm | 66.6mm | 66.6mm |
| Diameter of Focus Ring: | 60.48mm / 2.4" | 64.5mm / 2.5" | 64.5mm / 2.5" |
| Diameter of Aperture Ring: | 60.48mm / 2.4" | 64.5mm / 2.5" | 64.5mm / 2.5" |
| Length: | 100mm / 3.9" | 107mm / 4.2" | 112mm / 4.4" |
| Weight: | 425g / 0.9lbs | 465g / 1lb | 472g / 1lb |