TECHSPEC® HIGH RESOLUTION LARGE FORMAT LENS #68-219 • 386mm wd • 0.33x Our TECHSPEC® High Resolution Large Format lenses are specifically T ECHSPEC designed for line scan and large area scan cameras. These high-perfor- mance imaging lenses produce excellent resolution. At maximum aper- ture F4, these high-accuracy lenses provide twice the amount of light throughput of comparable lenses at F5.6 (where our iris is 1/2 closed). ® Typical applications include web inspection, flat panel (LCD, plasma and H solar) inspection, factory automation and food/beverage inspection. IGH RESOLU Focal Lenth: 166mm Aperture (f/#): f/4 - f/22, lockable T Nominal Magnification: 0.33X Distortion2: <0.2% ION LA Mag. Range: 0.32X - 0.39X Object Space NA2: 0.032 Working Distance1: 386mm No. of Elements (Groups): 10 (6) Lens Track2: 214mm AR Coating: 425-675nm BBAR R GE FO Filter Thread: M55 x 0.75 Lens Length: 103.6mm Image Circle: 62mm Diameter: 64mm Camera Mount: Adapter Required Weight: 100g R MA T Sensor Size 1” 1” Sq** 4/3” 28.7mm† 35mm* 43.0mm† 62.0mm† 81.9mm† 90.0mm† LENS Field of View3 38.5mm 33.8mm 54.4mm 86.24mm 108.2mm 129.2mm 186.1mm NA NA 1. From front of housing 2. At nominal magnification 3. Horizontal FOV on standard 4:3 sensor format *Full frame 43.3mm diag **1:1 Aspect ratio 16mm diag † Linear array Specifications subject to change ® COPYRIGHT 2014 EDMUND OPTICS, INC. ALL RIGHTS RESERVED ALL RIGHTS INC. EDMUND OPTICS, 2014 ® COPYRIGHT Figure 1: Distortion at the maximum sensor format. Postive values correspond to pincushion Figure 2: Relative illumination (center to corner) distortion, negative values correspond to barrel distortion. In both plots, field points corresponding to the image circle of common sensor formats are included. Plots represent theoretical values from lens design software. Actual lens performance varies due to manufacturing tolerances. www.edmundoptics.com TECHSPEC® HIGH RESOLUTION LARGE FORMAT LENS #68-219 • 386mm wd • 0.33x MTF & DOF: f/4.0 WD: 386mm T ECHSPEC ® H IGH RESOLU T ION LA R GE FO R Figure 3: Image space polychromatic diffraction FFT Modulation Transfer Function (MTF) for λ = 486nm to 656nm. Included are Tangential and Sagittal MA values for field points on center, at 70% of full field and at the maximum sensor format. Solid black line indicates diffraction limit determined by f/#- defined aperture. Frequencies corresponding to the Nyquist resolution limit of pixel sizes are indicated. T LENS ® COPYRIGHT 2014 EDMUND OPTICS, INC. ALL RIGHTS RESERVED ALL RIGHTS INC. EDMUND OPTICS, 2014 ® COPYRIGHT Figure 4: Polychromatic diffraction through-focus MTF at 20 linepairs/mm (image space). Contrast is plotted to two times the focus distance. Note object spatial frequency changes with working distance. Plots represent theoretical values from lens design software. Actual lens performance varies due to manufacturing tolerances. www.edmundoptics.com.