Sunny Technology S-8316D Low Drift Scanning System Head Aperture: 14mm Included Ronar- Smith SL-355-105-170Q F-Theta Scan Lens Glass Series EFL (mm): 170.0 Scan Field (mm): 105x105 Entrance Pupil (mm): 6.0 Max. Scan Angle (deg.): 27.0 BFL (mm): 219.1 Thread: M85x1 M1-M2 Separation (mm): 14.0 WD (mm): 216.1 Wavelength: 355nmHave some marks and scratches due to old stock.© All the pictures are Organic and this part is physically in our stock.